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Math · Ages 6–8 · 15 minutes

Order Numbers Across a Decade

Order nearby numbers and attend to the change in tens when crossing a decade.

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Order Numbers Across a Decade

Name:                              
Date:              

Today I am practising: ordering two-digit numbers and identifying neighbors

1

Put 39, 41, 38 and 40 in increasing order.

2

Write the number immediately before 60 and immediately after 60.

3

Put 72, 27, 70 and 29 in increasing order.

4

Fill the gaps: 48, 49, ___, ___, 52.

5

Write three consecutive numbers with 80 in the middle.

6

Explain why 59 comes immediately before 60 even though its ones digit is larger.

Grown-up guide
  1. Read each sequence aloud after writing it.
  2. Use one counter at a time to model a decade crossing.
  3. Keep increasing order separate from the order in which the numbers are printed.