Is 40 ÷ 1.99 less than, equal to, or greater than 20? Explain, showing your understanding of a meaning of division.
Correct Answer:
Verified
Q12: Tell how one might mentally compute each
Q13: Show how you would estimate:
A) 391 ×
Q14: Using benchmarks, find an estimate of
Q15: Joe Blue was estimating 92 × 31.
Q16: For each calculation, mentally obtain an estimate
Q18: Why is this student NOT showing good
Q19: 0.7614987 × 159.23842 is about:
A) 1.2.
B) 12.
C)
Q20: 1.334496 × 301.66 is CLOSEST to:
A) 400.
B)
Q21: 278.4132987 × 0.2617944285 is about:
A) 7.
B) 70.
C)
Q22: 0.3347876 × 629.847291143 is CLOSEST to:
A) 1800.
B)
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