Pairs to One Hundred


The purpose of this activity is to help your child learn pairs of numbers that add to make one hundred, for example 37 and 63.

Link to the Number Framework:

Number Facts, Stage 5.

What to do:

Use a calculator to challenge each other to make number pairs that add to one hundred.

  • Enter a two-digit number into the calculator. For example, 28.
  • Challenge the other player to make the number into one hundred using just one other number. In the above example the child needs to enter “+ 72=” to make one hundred.
  • Take turns entering numbers and completing the challenge using many different two digit numbers.

Related Māori vocab:

three digit numbertau mati-toru
add (addition)tāpiri (tāpiritanga)

Download a file of this activity:

PDF (344KB) or Word (30KB)

Download a file of this activity including questions to ask in Māori:

PDF (508KB) or Word (33KB)