Addition practice

Missing addends to multiples of ten

Find the amount needed to reach 10, 100, or 1,000, including optional decimal variants for place-value reasoning.

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Start with the given number and count on to the target multiple of ten. Write the amount added and check the completed equation.

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Learning objective

What this activity builds

Determine the missing part between a number and a selected power-of-ten target.

Worked example

Complete 67 + □ = 100.

33

Add 3 to reach 70, then 30 more to reach 100; 3 + 30 = 33.

Teaching notes

Make the practice count

  • Record jumps to the next ten and then to the target.
  • Connect these complements to mental strategies for adding near-round numbers.

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Configured PDF · Missing Addends to Powers of Ten · US Letter

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Math SheetNameScore/ 20TeacherDateMissing Addends to Powers of TenFind the addend needed to reach the target total.1.____ + 76 = 1002.____ + 31 = 1003.____ + 69 = 1004.100 = 69 + ____5.____ + 9 = 1006.100 = 51 + ____7.100 = ____ + 558.4 + ____ = 1009.100 = 97 + ____10.62 + ____ = 10011.100 = 37 + ____12.72 + ____ = 10013.100 = ____ + 914.3 + ____ = 10015.0 + ____ = 10016.20 + ____ = 10017.100 = 62 + ____18.6 + ____ = 10019.100 = 51 + ____20.55 + ____ = 100math-sheet.comPage 1 / 1

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