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Daniel Math Academy · Grade 3 Math

Estimate Differences

Skill C.5 · Rounding & estimating · ★★☆ Medium · Quarter 1

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Round each number to the place shown, then estimate.

1. 1
   Nearest hundred: $841-405$
2. 2
   Nearest ten: $52-31$
3. 3
   Nearest hundred: $849-699$
4. 4
   Nearest ten: $73-57$
5. 5
   Nearest hundred: $461-382$
6. 6
   Nearest ten: $52-29$
7. 7
   Nearest ten: $34-11$
8. 8
   Nearest hundred: $687-524$

Daniel Math Academy · Grade 3 Math

Answer Key

C.5 Estimate Differences · ★★☆ Medium

1. 1$800-400=400$
2. 2$50-30=20$
3. 3$800-700=100$
4. 4$70-60=10$
5. 5$500-400=100$
6. 6$50-30=20$
7. 7$30-10=20$
8. 8$700-500=200$