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EXERCICIOS 1) Calcule o valor das expressões: a) 7² - 4 = (R:45) b) 2³ + 10 = (R:18) c) 5² - 6 = (R:19) d) 4² + 7⁰= (R:17) e) 5⁰+ 5³= (R:126) f) 2³+ 2⁴ = (R:24) g) 10³ - 10² = (R:900) h) 80¹ + 1⁸⁰ = (R:81) i) 5² - 3² = (R:16) j) 1⁸⁰ + 0⁷⁰ = (R:1) 2) Calcule a) 3² + 5 = (R:14) b) 3 + 5² = (R:28) c) 3² + 5² = (R:34) d) 5² - 3² = (R:16) e) 18 - 7⁰ = (R:17) f) 5³ - 2² = (R:121) g) 10 + 10² = (R:110) h) 10³ - 10² = (R:900) i) 10³ - 1¹ = (R:999) 3) Calcule o valor das expressões a) 2³ x 5 + 3² = (R:49) b) 70⁰+ 0⁷⁰ - 1 = (R:0) c) 3 x 7¹ - 4 x 5⁰ = (R:17) d) 3⁴- 2⁴: 8 – 3 x 4 = (R:67) e) 5² + 3 x 2 – 4 = (R:27) f) 5 x 2² + 3 – 8 = (R:15) g) 5² - 3 x 2² - 1 = (R:12) h) 16 : 2 – 1 + 7² = (R:56) 4) calcule o valor das expressões: a) 5² : ( 5 +1 -1)+ 4 x 2 = (R:13) b) (3 +1)² +2 x 5 - 10⁰ = (R:25) c) c) 3²: ( 4 – 1) + 3 x 2² = (R:15) d) 70 –[ 5 x (2² : 4) + 3²] = (R:56) e) ( 7 + 4) x ( 3² - 2³) = (R:11) f) 5² + 2³ - 2 x (3 + 9) = (R:9) g) 6² : 3² + 4 x 10 – 12 = (R:32) h) (7² - 1 ) : 3 + 2 x 5 = (R:26) 5) calcule o valor das expressões: a) 5 + 4²- 1 = (R:20) b) 3⁴ - 6 + 2³ = (R:83) c) 2⁵ - 3² + 1⁹ = (R:24) d) 10²- 3² + 5 = (R:96) e) 11² - 3² + 5 = (R:117) f) 5 x 3² x 4 = (R:180) g) 5 x 2³ + 4² = (R:56) h) 5³ x 2² - 12 = (R:488) 6) Calcule o valor das expressões: a) ( 4 + 3)² - 1 = (R:48) b) ( 5 + 1 )² + 10 = (R:46) c) ( 9 – 7 )³ x 8 = (R:64) d) ( 7² - 5²) + ( 5² - 3 ) = (R:46) e) 6² : 2 - 1⁴ x 5 = (R:13) f) 3² x 2³ + 2² x 5² = (R:172) 7) Calcule o valor das expressões: a) 4²- 10 + (2³ - 5) = (R:9) b) 30 – (2 + 1)²+ 2³ = (R:29) c) 30 + [6² : ( 5 – 3) + 1 ] = (R:49) d) 20 – [6 – 4 x( 10 - 3²) + 1] = (R:17) e) 50 + [ 3³ : ( 1 + 2) + 4 x 3] = (R:71) f) 100 –[ 5² : (10 – 5 ) + 2⁴ x 1 ] = (R:79) g) [ 4² + ( 5 – 3)³] : ( 9 – 7)³ = (R:3) h) 7²+ 2 x[(3 + 1)² - 4 x 1³] = (R:73) i) 25 + { 3³ : 9 +[ 3² x 5 – 3 x (2³- 5¹)]} = (R:64) 8) Calcule as expressões: a) ( 8 : 2) . 4 + {[(3² - 2³) . 2⁴ - 5⁰] . 4¹}= (R:76) b) ( 3² - 2³) . 3³ - 2³ + 2² . 4² = ( R:83) c) ( 2⁵ - 3³) . (2² - 2 ) = (R: 10) d) [2 . (10 - 4² : 2) + 6²] : ( 2³ - 2²) = ( R:10) e) (18 – 4 . 2) . 3 + 2⁴ . 3 - 3² . ( 5 – 2) = (R: 51) f) 4² . [2⁴ : ( 10 – 2 + 8 ) ] + 2⁰ = (R: 17) g) [( 4² + 2 . 3²) + ( 16 : 8)² - 35]² + 1¹⁰ - 10⁰ = (R : 9) h) 13 + ( 10 – 8 + (7 – 4)) = (R: 18) i) (10 . 4 + 18 – ( 2 . 3 +6)) = (R:46) j) 7 . ( 74 – ( 4 + 7 . 10)) = (R: 0) k) ( 19 : ( 5 + 3 . 8 – 10)) = (R : 1) l) (( 2³ + 2⁴) . 3 -4) + 3² = (R: 77) m) 3 + 2 . ((3²- 2⁰) + ( 5¹ - 2²)) + 1 = (R: 22) 9) Calcule as expressões: a) 7 – ( 1 + 3) = (R:3) b) 9 – ( 5 – 1 + 2) = (R: 3) c) 10 – ( 2 + 5 ) + 4 = (R: 7) d) ( 13 – 7 ) + 8 – 1 = (R: 13) e) 15 – ( 3 + 2) – 6 = (R: 4) f) ( 10 – 4 ) – ( 9 -8) + 3 = (R: 8) g) 50 – [ 37 – ( 15 – 8 ) ] = (R: 20) h) 28 + [50 – (24 – 2) -10 ] = (R: 46) i) 20 + [ 13 + (10 – 6) + 4] = (R: 41) j) 52 – { 12 + [ 15 – ( 8 – 4)]} = (R: 29) l) 25 + { 12 + [ 2 – ( 8 – 6 ) + 2 ]} = (R: 39) m) { [ ( 18 – 3 ) + ( 7 + 5) – 2 ] + 5 } – 12 = (R:18) n) 65 – { 30 – [ 20 – ( 10 – 1 + 6) + 1 ]} = (R: 41) o)45 + { 15 – [ ( 10 – 8 ) + ( 7 – 4) – 3 ] – 4 } = (R:54) p) 40 + { 50 – [35 – ( 25 +5) – 1 ]} + 7 = (R:93) q)38 – { 20 – [ 22 – ( 5 + 3) + ( 7 – 4 +1)]} = ( R:36) r) 26 + { 12 – [ ( 30 – 18) + ( 4 – 1) – 6 ] – 1 } = (R::28) s) 25-[10 + (7 - 4)] = (R:12) t) 32+ [10-(9-4)+8] = (R:45) u)45-[12-4+(2+1)] = (R:31) v)70-{20-[10-(5-1)]} = (R:56) x) 28 + {13 - [6 -(4 + 1) + 2] - 1 } = (R:37) z) 53-{20-[30-(15-1+6) + 2 ]} = (R:45) 10) Calcule as expressões: a) [-7+14 : (5 - √ 49 ) ] : 7 b) [ -13 + 13 . ( -1 -3 . 2²)] : 14 c) -5 – [ (-5}² - (-2 -√9 ). 5 ] : 10 d) (-2)² - [ -2³ - √16 . ( 2³ - 10) ] : 171 e) 2 .[10-(3²- 4 . 5) - √9] : 18 f) 10 – [ 3º - (-2)³ - ( 4 – 8 : 2)] - √4 g) [(13 – 3 .4)³ - ( 18 – 4 . 5)³] : 3 h) 100 – {[25 + ( -2 – 1 )³] : 2 + √49} : 3 i) 100 – {[30 – ( 5 + 1)²] : 6 + √81 } : 8 j) 72. [ 4³ - ( √121 + 2 .26)] l) 42 . [ 4. ( 32 – 4 . √49 ) -1 ] : 63 m) -5 + 2 .3² + 2 . √4 n) -6 + 2 . (-2)³ + 5 . 7º o) 10 + 2 . 2² - 5 . √49 p) √100 + 3 .(-3)³- 2 q) 11 – 100 : (-10) r) -13 + (-800) : 80 s) 5 – 2 . [ (-3) . (-2 – 6) : 4 + 15] t) (3 -2 . 9 ) : 5 u) (3 – 2 .9) : (-5) : (-3) v) ( 7 – 2 .14) : (-21) – ( 5 – 2 ) : 3 x) [(7 – 2 . 14) : (-21) – (5 – 2)] : 2 z) [4 – 2 . (3 – 7)] : (-2) -5 11) Calcule as expressões: a) 1 – [7 – (4 – 3 . 2 ) . (-1 – 1)] . 5 b) 125 : (-5) : (-5) c) (-64) : (-4) : (-4) d) 5 + ( -3)² + 1 = (R:15) e) 10 + (-2)³ -4 = (R:-2) f) 12 – 1 + (-4)² = (R:27) g) (-1)⁵ + 3 – 9 = (R:-7) h) 18 – (+7) + 3² = (R:20) i) 6 + (-1)⁵ - 2 = (R:3) j) (-2)³ - 7 – (-1) = (R:-14) l) (-5)³ - 1 + (-1)⁹ = (R:-127) m) 5⁰ - ( -10) + 2³ = (R:19) n) (-2)³ + (-3)² - 25 = (R:-24) 12) Calcule o valor das expressões: a) 3 - 4² + 1 = (R:-12) b) 2³ - 2² - 2 = (R:2) c) (-1)⁴ + 5 - 3² = (R:-3) d) 5⁰ - 5¹ - 5⁰ = (R:-5) e) (-3)². (+5) + 2 = (R:47) f) (-1)⁷ - (-1)⁸ = (R:-2) g) 5 + (-3)² + 7⁰ = (R:15) h) √49 + 2³ - 1 = (R:14) 13) Calcule o valor das expressões: a) (-3)² + 5 = (R:14) b) (-8)² - (-9)² = (R:-17) c) -72⁰ + (-1)⁸ = (R:0) d) (-12)⁰ + (+12)⁰ = (R:2) e) 10³ - (-10)² - 10⁰ = (R:899) f) (-7)² + (-6)² - (-1)² = (R:84) g) (-1)⁶ + (+1)⁵ + (-1)⁴ + (+1)³ = (R:4) h) 2⁶ - 2⁵ - 2⁴ - 2³ - 2² - 2 = (R:2) 14) Calcule o valor das expressões: a) (-3) . (+7) + (-8) . (-3) = (R:3) b) (-3)³ + (+2)² - 7 = (R:-30) c) 8 + (-3 -1)² = (R:24) d) (-2 + 6)³ : (+3 – 5)² = (R:16) e) –(-5)² + (-7 + 4) = (R:-28) f) (-2)⁶ + (+5) . (-2) = (R:54) 15) Calcule o valor das expressões: a) (-3)³ . (-2)² + (3) + 5⁰ = (R:-110) b) (-1)³ + 3 + (+2) . (+5) = (R:12) c) (-2) . (-7) + (-3)² = (R:23) d) 2 . (-5)² - 3 . (-1)³ + 4 = (R:57) e) –[ -1 + (-3) . (-2)]² = (R:-25) f) –(5 – 7)³ - [ 5 - 2² - (4 – 6)] = (R:5) g) (-3 + 2 – 1)³ - ( -3 + 5 – 1)⁸ + 3 = (R:-6) h) 8 – [ -7 + )-1) . (-6) + 4]²= (R:-1) i) 14 – [(-1)³ . (-2)² + (-35) : (+5)] = (R:25) j) 5³ - [ 10 + (7 -8)² ]² - 4 + 2³ = (R:8) k) (-1)⁸ + 6⁰ - [15 + (-40) : (-2)³ ] = (R:-18) l) -3 –{ -2 – [(-35) : (+5) + 2² ]} = (R:-4) 16) Calcule o valor das expressões: a) (- 3 + 5 + 2) : (-2) = (R:-2) b) (+3 – 1)² - 15 = (R:-11) c) (-2)³ - (-1 + 2)⁵ = (R:-9) d) 40 : (-1)⁹ + (-2)³ - 12 = (R:-60) e) 10 – [5 – (-2) + (-1)] = (R:4) f) 2 – { 3 + [ 4 – (1 – 2) + 3 ] – 4} = (R:-5) g) 15 – [ (-5)² - (10 - 2³ ) ] = (R:-8) h) 13 – [(-2) – (-7) + (+3)² ] = (R:-1) i) 7² - [ 6 – (-1)⁵ - 2²] = (R:46) j) 2³ - [(-16) : (+2) – (-1)⁵] = (R:15) k) 50 : { -5 + [ -1 –(-2)⁵ : (-2)³ ]} = (R:-5) 17) Calcule o valor das expressões: a) 10 + (-3)² = (R:19) b) (-4)² - 3 = (R:13) c) 1 + (-2)³ = (R:-7) d) -2 + (-5)² = (R:23) e) (-2)² + (-3)³ = (R:-23) f) 15 + (-1)⁵ - 2 = (R:12) g) (-9)² -2 – (-3) = (R:82) h) 5 + (-2)³ + 6 = (R:3) 18) Calcule o valor das expressões: a) 5 – { +3 – [(+2)² -(-5)² + 6 – 4 ]} = (R:-17) b) 15 – { -3 + [(5 – 6)² . (9 -8 ) ² + 1]} = (R:16) c) 18 – { 6 – [ -3 – (5 – 4) – (7- 9)³ ] – 1 } = (R:17)d) -2 + { -5 –[ -2 – (-2)³ - 3- (3 -2 )⁹ ] + 5 } = (R:-4) e) 4 – {(-2)² . (-3) – [ -11 + (-3) . (-4)] – (-1)} = (R:16) 19) Efetue as subtrações: a) (+5/7) – (+2/3) = (R: 1/21) b) (+2/3) – (+1/2) = (R: 1/6) c) (+2/3) – (+4/5) = (R: -2/15) d) (-7/8) – (-3/4) = (R: -1/8) e) (-2/5) – (-1/4) = (R: -3/20) f) (-1/2) – (+5/8) = (R: -9/8) g) (+2/3) – ( (+1/5) = (R: 7/15) h) (-2/5) – ( +1/2) = (R: -9/10) 20) Efetue as subtrações: a) (+1/2) – (+5) = (R: -9/2) b) (+5/7) – (+1) = (R: -2/7) c) 0 – ( -3/7) = (R:3/7) d) (-4) – (-1/2) = (R: -7/2) e) (+0,3) – (-1/5) = (R: ½) f) (+0,7) – (-1/3) = (R:31/30) 21) Calcule a) -1 – ¾ = (R: -7/4) b) (-3/5) + (1/2) = (R: -1/10) c) 2 – ½ -1/4 = (R: 5/4) d) -3 -4/5 + ½ = (R: -33/10) e) 7/3 + 2 -1/4 = (R: 49/12) f) -3/2 + 1/6 + 2 -2/3 = (R: 0) g) 1 – ½ + ¼ - 1/8 = (R:5/8) h) 0,2 + ¾ + ½ - ¼ = (R:6/5) i) ½ + (-0,3) + 1/6 = (R:11/30) j) 1/5 + 1/25 + (-0,6) = (R: 1/10) 22) Calcule o valor de cada expressão: a) 3/5 – 1 – 2/5 = (R: -4/5) b) 3/5 – 0,2 + 1/10 = (R: ½) c) -3 – 2 – 4/3 = (R: -19/3) d) 4 – 1/10 + 2/5 = (R: 43/10) e) 2/3 – ½ -5 = (R: 29/6) f) -5/12 – 1/12 + 2/3 = (R: 1/6) 23) Calcule o valor de cada expressões: a) -1/3 + 2/9 – 4/3 = (R: -13/9) b) -4 + ½ - 1/6 = (R:-11/3) c) 0,3 + ½ - ¾ = (R: 1/20) d) 1 + ¼ - 3/2 + 5/8 = (R: 3/8) e) 0,1 + 3/2 – ¼ + 2 = (R: 67/20) f) ¾ + 0,2 – 5/2 – 0,5 = ( R: - 41/20) 24) Calcule o valor de cada expressão a) 1/2 – (-3/5) + 7/10 = (R: 9/5) b) -(-1) – (- 4/3) + 5/6 = (R: 19/6) c) 2 – ( - 2/3 – ¼) + 0,1 = (R: 181/60) d) ( -1 + ½) – ( -1/6 + 2/3) = (R: -1) e) 2 – [ 3/5 – ( -1/2 + ¼ ) ] = (R: 23/20) f) 3 – [ -1/2 – (0,1 + ¼ )] = (R: 77/20) g) (1/3 + ½) – (5/6.- ¾) = (R: ¾) h) (5/2 – 1/3 – ¾ ) – (1/2 + 1) = (R: -1/12) i) (1/4 + ½ + 2 ) + (-1/6 + 2/3) = (R: 13/4) j) (-0,3 + 0,5 ) – ( -2 - 4/5) = (R: 3) k) (1/6 + 2/3) – (4/10 – 3/5) + 1/3 = (R: 41/30) l) 0,2 + (2/3 – ¼) – ( -7/12 + 4/3) = (R: -2/15) m) (1 – ¼) + (2 + ½) – (1 - 1/3) – ( 2 – ¼ ) = (R: 5/6) 25) Calcule o valor das expressões a) 30-(5+3) = (R: 22) b) 15+(8+2) = (R: 25) c) 15-(10-1-3) = (R: 9) d) 23-(2+8)-7 = (R: 6 ) e) (10+5)-(1+6) = (R: 8) f) 7-(8-3)+1= (R: 3 ) 26) Calcule o valor das expressões a) 25-[10+(7-4)] = (R:12) b) 32+[10-(9-4)+8] = (R:45) c) 45-[12-4+(2+1)] = (R:34) d) 70-{20-[10-(5-1)]} = (R:56) e) 28+{13-[6-(4+1)+2]-1} = (R:37) f) 53-{20-[30-(15-1+6)+2]} = (R:45) g) 62-{16-[7-(6-4)+1]} = (R:52) h) 20-{8+[3+(8-5)-1]+6} = (R:1) i) 15+{25-[2-(8-6)]+2} = (R:42) j) 56-[3+(8-2)+(51-10)-(7-2)] = (R:11) l){42+[(45-19)-(18-3)+1]-(28-15)-1} = (R:) 27) Calcule o valor da expressões a) 7-(1+3)= (R:3) b) 9-(5-1+2)= (R:3) c) 10-(2+5)+4= (R:7) d) (13-7)+8-1= (R:13) e) 15-(3+2)-6= (R:4) f) (10-4)-(9-8)+3= (R:8) g) 50-[37-(15-8)]= (R:20) h) 28+[50-(24-2)-10]= (R:46) i) 20+[13+(10-6)+4]= (R:41) j) 52-{12+[15-(8-4)]}= (R:29) 28) Calcule o valor das expressões: a) 25 + { 12 + [ 2 – ( 8 – 6 ) + 2 ]} = (R:39) b) { [ ( 18 – 3 ) + ( 7 + 5) – 2 ] + 5 } – 12 = (R:18) c) 65 – { 30 – [ 20 – ( 10 – 1 + 6) + 1 ]} = (R: 41) d)45 + { 15 – [ ( 10 – 8 ) + ( 7 – 4) – 3 ] – 4 } = (R:54) e) 40 + { 50 – [35 – ( 25 +5) – 1 ]} + 7 = (R:93) f)38 – { 20 – [ 22 – ( 5 + 3) + ( 7 – 4 +1)]} = ( R:36) g) 26 + { 12 – [ ( 30 – 18) + ( 4 – 1) – 6 ] – 1 } = (R:28) 29) Calcule o valor das expressões a) 10 - 5 - 2 + 3 = (R: 6) b) 10 - ( 5 + 2) + 3 = (R:6) c) ( 10 - 5) - ( 2 + 3) = ( R: 0) d) 10 - ( 5 - 2 + 3) = ( R: 4) e) ( 17 + 9 ) - 8 - ( 11 + 4) = (R: 3) f) 86 + ( 31 - 16 + 60 ) - ( 200 - 70 - 50 ) = ( R: 81) g) ( 79 + 21 - 84) + ( 63 - 41 + 17 ) - 26 = ( R: 29) 30) Calcule o valor das expressões: a) 10 – 1 + 8 – 4 = (R 13) b) 12 – 8 + 9 – 3 = (R: 10) c) 25 – 1 – 4 – 7 = ( R: 13) d) 30 – ( 5 + 3 ) = ( R: 22) e) 15 + ( 8 + 2 ) = (R: 25) f) 25 – ( 10 – 1 – 3 ) = (R: 19) g) 45 – 18 + 3 + 1 – 2 = ( R: 29) h) 75 – 10 – 8 + 5 – 1 = (R: 61) i) 10 + 5 – 6 – 3 – 3 + 1 = (R: 4) j) 23 – ( 2 + 8 ) – 7 = (R: 6) k) ( 10 + 5 ) – ( 1 + 6 ) = ( R: 8) l) 7 – ( 8 – 3 ) + 1 = (R: 3) m) 25 – [ 10 + ( 7 – 4 ) ] = (R: 12) n)32+ [ 10 – ( 9 – 4 ) + 8 ] =- (R: 45) o) 45 – [ 12 – 4 + ( 2 + 1 )] = (R: 34) p) 70 – { 20 – [ 10 – ( 5 – 1 ) ]} = (R: 56) q) 28 + { 13 – [ 6 – ( 4 + 1 ) + 2 ] – 1 } = ( R: 37) r) 53 – { 20 – [ 30 – ( 15 – 1 + 6 ) + 2 ]} = (R: 45) s) 62 – { 16 – [ 7 – ( 6 – 4 ) + 1 ]} = (R: 52) t) 20 – { 8 + [ 3 + ( 8 – 5 ) – 1 ] + 6} = (R: 1) u) 15 + { 25 – [ 2 – ( 8 – 6 )] + 2 } = ( R: 42) v) 56 – [ 3 + ( 8 – 2 ) + ( 51 – 10 ) – ( 7 – 2 )] = (R: 1) w) { 42 + [ (45 – 19) – ( 18 – 3 ) + 1 – (28 – 15 ) ]} = (R: 41) x) 7 – ( 1 + 3 ) = (R: 3) y) 9 – ( 5 – 1 + 2 ) = (R: 3) z) 10 – ( 2 + 5 ) + 4 = (R: 7) 31) Calcule o valor das expressões: a) 16+[10-(18:3+2)+5] = (R: 23) b) 25-[12-(3x2+1)] = (R: 20) c) 90-[25+(5x2-1)+3] = ( R: 53) d) 45+[(8x5-10:2)+(18:6-2)] = (R: 81) e) 50-2x{7+8:2-[9-3x(5-4)]} = (R: 40) f) 100-3x{5+8:2-[3x(7-6)]} = (R: 82) 32) Determine o valor de cada expressão a) 1000 - [(2 . 4 - 6) + ( 2 + 6 . 4)] = (R: 972) b) 60 + 2 . {[ 4 . ( 6 + 2 ) - 10 ] + 12} = ( R: 128 ) c) [( 4 + 16 . 2) . 5 - 10] . 100 = (R: 17.000) d) { 10 + [ 5 . ( 4 + 2 . 5) - 8] . 2 } - 100 = ( R: 34) e) 80 - 5 . ( 28 - 6 . 4 ) + 6 - 3 . 4 = (R: 54) 33) Calcule a) 4 . ( 10 + 20 + 15 + 30) = (R: 300) b) (10 . 6 + 12 . 4 + 5 . 8 ) - 40 = (R: 108) c) [ 6 . ( 3 . 4 - 2 . 5) - 4 ] + 3 . ( 4 - 2) - ( 10 : 2 ) = (R: 9) d) 67 + { 50 . [ 70 : ( 27 + 8 ) + 18 : 2 ] + 21 } = (R:638) e) [ 30 . ( 9 - 6)] + { 30 : ( 9 + 6 ) ] = (R: 92) f) 58 - [ 20 - ( 3 . 4 - 2) : 5 ] = (R: 40) g) 40 + 2 . [ 20 - ( 6 + 4 . 7 ) : 2 ] = ( R: 46) 34) Calcule o valor das expressões a) (12 + 2 . 5) - 8 = (R: 14) b) 25 - ( 15 + 6 : 3) = (R: 8) c) 25 +[7 + ( 8 - 4 :2)] = (R: 38) d) 60 - [8 + ( 10 - 2 ) : 2] = (R: 46) e) 80 - [ 22 + ( 5 . 2 - 1 ) + 6] = (R: 43) f) 14 : 2 + [ 13 - ( 4 . 2 + 1 ) ] = (R: 11) g) [ 30 + 2 x ( 5 – 3 ) ] x 2 – 10 h) 20 : 10 + 10 i) 10 + [ 4 + ( 7 x 3 + 1 ) ] – 3 35) Resolva as expressões numéricas: a) 8 – ( 1 + 3) = (R: 4) b) 7x 3 – 2 x 5 = (R: 11) c) ( 13 – 7 ) + 8 – 1 = (R : 13) d)4 x 3 + 10 : 2 = (R: 17) e) 15 – ( 3 + 2 ) – 6 = (R: 4) f) 40 – 2 x 4 + 5 = (R: 37) g) ( 10 – 4 ) – ( 9 – 8 ) + 3 = (R: 8) h) 50 – 16 : 8 + 7 = ( R: 55) i) 50 – [37 – ( 15 – 8 ) ] = (R: 20) j) 32 : 4 : 2 : 2 = (R: 2) l) 28 + [ 50 – ( 24 – 2 ) – 10 ] = (R: 46) m) ( 13 + 2) x 3 + 5 = (R: 50) n) 20 + [ 13 + ( 10 – 6 ) + 4 ] = (R : 41) o) ( 7 + 2 ) x ( 3 – 1 ) = (R: 18) p) 52 – { 12 + [ 15 – ( 8 – 4 )]} q) ( 4 + 2 x 5 ) – 3 r) 7 + 15 : 3 s) 20 – ( 15 + 6 : 3) t) 4 x 5 + 1 u) 15 + [ 6 + ( 8 – 4 : 2 )] v) 10 : 2 + 8 x) 40 – [ 3 – (10 – 2 ) : 2 ] z) 32 + 12 : 2
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