a teacher asked the class to write an expression that has two decimal factors and an estimated product of…

a teacher asked the class to write an expression that has two decimal factors and an estimated product of 30. which of these expressions have an estimated product of 30? check all that apply. 9.7×2.84 10.1×28.8 6.25×4.76 35.3×1.92

a teacher asked the class to write an expression that has two decimal factors and an estimated product of 30. which of these expressions have an estimated product of 30? check all that apply. 9.7×2.84 10.1×28.8 6.25×4.76 35.3×1.92

Answer

Explanation:

Step1: Round the decimal factors

Round each decimal factor to the nearest whole - number.

Step2: Calculate the estimated products

For (9.7\times2.84), round (9.7) to (10) and (2.84) to (3), then (10\times3 = 30). For (10.1\times28.8), round (10.1) to (10) and (28.8) to (29), then (10\times29=290). For (6.25\times4.76), round (6.25) to (6) and (4.76) to (5), then (6\times5 = 30). For (35.3\times1.92), round (35.3) to (35) and (1.92) to (2), then (35\times2 = 70).

Answer:

9.7×2.84, 6.25×4.76