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Worksheet: Decomposing Teen Numbers

Q1:

Complete the sentence.

Q2:

Find the card to match the ten frames.

  • A
  • B
  • C

Q3:

If 1 9 = 1 0 + 9 , how is 18 composed?

  • A 1 8 = 1 0 + 1 8
  • B 1 8 = 1 + 8
  • C 1 8 = 1 0 + 8

Q4:

Find the sum that equals 51.

  • A 5 0 + 1 0
  • B 1 0 + 1 0 + 1 0 + 1 0 + 1 0 + 1 + 1 + 1 + 1 + 1
  • C 1 0 + 1 0 + 1 0 + 1 0 + 1 0 + 1

Q5:

Help Chloe compose a number that is greater than 10.

She has ten ones in her ten frame and some more leftover.

How many counters does she have altogether?

She is recording her work as an expression.

She is missing an addend. Which number does she need?

  • A
  • B
  • C

Q6:

Candy canes are sold in packs of 10 and as single candy canes.