Question

Mrs. Beck buys 48 pieces of house siding. Each piece is 3.7 meters long. Which equation represents the best estimate for the total length of siding Mrs. Beck buys? A. 40 × 3 = 120 meters B. 40 × 4 = 160 meters C. 50 × 4 = 200 meters D. 50 × 5 = 250 meters

Answer 1

C. 50 × 4 = 200 meters

Explanation:

Best Estimate involves rounding up the numbers

Mrs. Beck buys 48 pieces of house siding.

Rounding up to the nearest whole number

= 50 pieces

Each piece is 3.7 meters long.

Rounding up to the nearest whole number

= 4.0 meters long

Hence,

50 pieces × 4 meters = 200 meters

Option C is correct