Question

11. Find the product of the following.
a. 6 × (--7) × (-9)
b. 8 × 5 × (-7)
c. 5 × (-3) × (-1)

12. Evaluate by proper regrouping

a. 63 x 12 x 5

b. (-54) 15 6

13. Verify the following and also name the property verified

a. 11 + (-19) = (–19) + 11

C. 12 (-45) = (-45) * 12

b. 36 *[(-4) + (-3)] = 36 * (-4) + 36 * (-3)

d. 210 + [52 +(-28)] = [210 +52] + (-28)​

Answer 1

• 11. (a)378

b)-280

c)15

• 12.a)3780

b)8424

• 13.a)commutativity over addition

b)commutativity over multiplication

c)distributivity

d)associativity over addition