Question

a)230+[(7-2)(4-1)+(3-2)]
b)500-6+[(14-6)-(7-2)+(4-1)
c)3(8-1)+4(3+2)-3(5-4)​

Answer 1

a) 230+[(7-2)(4-1)+(3-2)]

230 + 5 (4-1) + (3-2)

230 + 5 × 3 + (3-2)

230 + 5 × 3 + 1

230 + 15 + 1

R= 246

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b) 500-6+[(14-6)-(7-2)+(4-1)

500 - 6 + (8 - 5 + (4 - 1)

500 - 6 + (8 - 5 + 3)

500 - 6 + 6

R= 500

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c) 3(8-1)+4(3+2)-3(5-4)

3 × 7 + 4 × 1 - 3 × 1

3 × 7 + 4 - 3

21 + 4 - 3

R= 22

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Espero haberte ayudado☆