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Math · Ages 6–8 · 15 minutes

Same Total, Different Bundles

Compare standard and nonstandard representations without assuming the ones count must be below ten.

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Same Total, Different Bundles

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Date:              

Today I am practising: recognizing equivalent nonstandard tens-and-ones forms

1

Find the total of 2 tens and 13 ones.

2

Represent 45 using exactly 3 tens. How many ones are needed?

3

Which represent 52: 5 tens and 2 ones; 4 tens and 12 ones; 3 tens and 12 ones?

4

A learner says 1 ten and 24 ones is 124. Show the actual total.

5

Give two representations of 60 using different numbers of tens.

6

Explain how exchanging one ten changes the ones count but preserves the total.

Grown-up guide
  1. Name the value of a ten before combining counts.
  2. Let the learner trade counters or bundles to check equivalence.
  3. Accept any representation that preserves the stated total.