Question

Which of the following expressions shows how to use mental math to find 7×27

?
Responses

(7×20)+(7×7)
7 × 20 + 7 × 7

(7×49)+(9×4)
7 × 49 + 9 × 4

(9×50)+(9×7)
9 × 50 + 9 × 7

(9×50)+(7×9)

Answer 1

[AI-generated answer — Bot GPT 3.5]

The expression (7×20)+(7×7) shows how to use mental math to find 7×27.

Answer 2

[AI-generated answer — Step-by-Step Bot]

The expression that shows how to use mental math to find 7×27 is (7×20)+(7×7).