Use a suitable property to find 25 x 8 x 4 mentally. What is the product?

800. Regroup using the associative property: 25 x (8 x 4) = 25 x 32 = 800. (Or 25 x 4 = 100, then 100 x 8 = 800.)

Use a suitable property to find $25 \times 8 \times$ 4 mentally. What is the product?

Class 6Properties of Whole NumbersWhole Numbers

Regroup using the associative property:

25 \times (8 \times 4) = 25 \times 32 = 800

. (Or

25 \times 4 = 100

, then

100 \times 8 = 800.

)

Answer: A) 800

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