Compute each of the following:

(a). 15+(-5)+15+(-7)

(b). 34+(-20)+16+(-10)

(c). 32+16+9+(-70)

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Solution

(a). [15+(-5)] + [15+(-7)]=10+8=18

(b). [34+(-20)] + [16+(-10)] =14+6=20

(c). [32+16] + [9+(-70)] = [48+(-61)] =48-61=-13

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Similar questions

Compute each of the following:

(a). 15+(-5)+15+(-7)

(b). 34+(-20)+16+(-10)

(c). 32+16+9+(-70)

(d). -3+(-2)+(-5)+7

(e). -53+(-17)

Compute each of the following: [4 MARKS]

$(a) 15 + (- 5) + 15 + (- 7)$

$(b) 34 + (- 20) + 16 + (- 10)$

$(c) 32 + 16 + 9 + (- 70)$

$(d) - 3 + (- 2) + (- 5) + 7$

(\frac{15}{35} \div \frac{30}{70}) \times (\frac{16}{26} \div \frac{32}{13})

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