7/28/2019 BI&S Vol 3 Page 49

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Name 49

BuildItandSee!Grade3D

igi-Block

Fill in the blanks with the numbers shown.Use blocks to check your answers.

1.________ and ________ have a sum of 659.

2. ________ and ________ have a difference of 87.

3. ________ and ________ have a sum of 529.

4. ________ and ________ have a difference of 43.

5. ________ and ________ have a sum of 384.

6. ________ and ________ have a difference of 102.

7. Estimate the sum of all four numbers:

______________________________

373 286 243 141