Estimate Differences

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: $765-219$
2. 2
   Nearest hundred: $585-234$
3. 3
   Nearest ten: $78-31$
4. 4
   Nearest ten: $84-37$
5. 5
   Nearest ten: $35-16$
6. 6
   Nearest ten: $18-11$
7. 7
   Nearest ten: $91-81$
8. 8
   Nearest ten: $73-16$

Daniel Math Academy · Grade 3 Math

Answer Key

C.5 Estimate Differences · ★★☆ Medium

1. 1$800-200=600$
2. 2$600-200=400$
3. 3$80-30=50$
4. 4$80-40=40$
5. 5$40-20=20$
6. 6$20-10=10$
7. 7$90-80=10$
8. 8$70-20=50$