NAME ____________________________________ DATE __________________

ACTIVITY

Missing Numbers: Equations on the 400 Chart

  • 1 Solve these problems. Fill in the totals on the 400 chart below.

    306 + 10 = __________

    326 + 10 = __________

    359 − 10 = __________

    390 − 10 = __________

    319 − 10 = __________

    337 + 10 = __________

    361 + 10 = __________

    372 − 10 = __________

    310 + 10 = __________

    343 − 10 = __________

    378 − 10 = __________

    395 − 10 = __________

  • 2 Fill in the other missing numbers on the 400 chart.

    A 400 chart. d

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Table of Contents

Investigations 3 in Number, Data, and Space®, Student Activity Book Unit 1 Coins, Number Strings, and Story Problems Unit 2 Attributes of Shapes and Parts of a Whole Unit 3 How Many Stickers? How Many Cents? Unit 4 Pockets, Teeth, and Guess My Rule Unit 5 How Many Tens? How Many Hundreds? Unit 6 How Far Can You Jump? Unit 7 Partners, Teams, and Other Groups Unit 8 Enough for the Class? Enough for the Grade?