NAME ____________________________________ DATE __________________

DAILY PRACTICE

Looking for Combinations

Solve the same number string three different ways. Use equations to show your solution.

• 1 Begin by looking for combinations of 10.

  ✓    ✓

  6 + 4 + 5 + 7 + 4

  6 + 4 = 10

• 2 Begin by looking for doubles.

  6 + 4 + 5 + 7 + 4

• 3 Begin by looking for near doubles.

  6 + 4 + 5 + 7 + 4

Ongoing Review

• 4 Which number combination does not make 20?

  • A 10 + 10

  • B 18 + 2

  • C 19 + 3

  • D 5 + 5 + 5 + 5

NOTE

Students practice using combinations they know to solve a problem with several addends.

MWI Number Strings

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