A teacher asked four students to write a multiplication expression to estimate 1, 592 + 8 and received the responses shown. Which student wrote the estimate that is closest to the actual value"?

Question

Certilyst · Accepted Answer

A Rationale: Isabella wrote the estimate that is closest to the actual value. Her expression, 1,590 × 8, accurately reflects the intention of estimating 1,592 + 8 by rounding 1,592 down to 1,590 and using the correct multiplier.

Jayden's choice of 1,590 × 10 overestimates the sum, as it rounds 8 up to 10, leading to a less accurate estimate of the actual value.

Michael's expression, 1,600 × 8, rounds 1,592 up to 1,600 but maintains the multiplier of 8, resulting in an estimate that is too high when compared to the actual sum.

Sarah’s estimate of 1,600 × 10 not only rounds 1,592 up but also rounds 8 to 10, significantly overshooting the actual value, making it the least accurate of all the responses.

Praxis 5003 Study Guide

Isabella: 1,590Ãƒâ€”8 Jayden: 1,590Ãƒâ€”10 Michael: 1,600Ãƒâ€”8 Sarah: 1,600Ãƒâ€”10

A teacher asked four students to write a multiplication expression to estimate 1, 592 + 8 and received the responses shown. Which student wrote the estimate that is closest to the actual value"?