Grade 5 estimation reaches its highest level in this worksheet, focusing on order-of-magnitude reasoning and reasonableness checks. Multiple choice items ask students to spot computational errors and judge whether answers are sensible. Fill-in problems include large-number multiplication, decimal products, and money applications. The sheet strengthens Grade 5 critical thinking by combining rounding, compatible numbers, and front-end estimation across challenging multi-step contexts.
Style:
Estimation Strategies
Part A: Multiple Choice
Circle the best answer for each question.
1. Lily computed 487 × 21 and got 1,022. Is this reasonable?
A) No, it should be near 10,000
B) Yes, it is correct
C) No, it should be near 100
D) Yes, near 1,000
2. Which estimate is BEST for 7.85 × 3.9?
A) 20
B) 32
C) 45
D) 60
3. A baker has 4,872 cookies in 6 boxes. About how many per box?
A) 50
B) 500
C) 800
D) 8,000
4. Which sum is closest to 5,283 + 1,917?
A) 3,000
B) 5,000
C) 6,000
D) 7,000
Part B: Fill in the Blank
Write the correct answer on each line.
1. Estimate 612 × 78 by rounding to nearest 10: 48,000.
2. Estimate 7,234 ÷ 9 using compatibles: 800.
3. Estimate 3.87 × 5.2 to nearest whole: 20.
4. Estimate 12,438 + 7,612 to nearest 1000: 20,000.
5. Estimate $48.75 × 9 to nearest dollar: $450.
Estimation Strategies
★ Part A: Multiple Choice
Circle the best answer for each question.
1. Lily computed 487 × 21 and got 1,022. Is this reasonable?
A) No, it should be near 10,000
B) Yes, it is correct
C) No, it should be near 100
D) Yes, near 1,000
2. Which estimate is BEST for 7.85 × 3.9?
A) 20
B) 32
C) 45
D) 60
3. A baker has 4,872 cookies in 6 boxes. About how many per box?
A) 50
B) 500
C) 800
D) 8,000
4. Which sum is closest to 5,283 + 1,917?
A) 3,000
B) 5,000
C) 6,000
D) 7,000
★ Part B: Fill in the Blank
Write the correct answer on each line.
1) Estimate 612 × 78 by rounding to nearest 10: 48,000.
2) Estimate 7,234 ÷ 9 using compatibles: 800.
3) Estimate 3.87 × 5.2 to nearest whole: 20.
4) Estimate 12,438 + 7,612 to nearest 1000: 20,000.
5) Estimate $48.75 × 9 to nearest dollar: $450.
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9 Questions
12-18 minutes
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