Missing Numbers to 120
Count to 120. Write the missing numbers in the blue boxes.
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This is sheet #13324601.
How to do it
- Find a blue box.
- Look at the number before it, or the number above it.
- Write the missing number.
Teaching tip
Numbers in the same column end in the same digit, and each row down is 10 more. This sheet is aligned with Common Core 1.NBT.B.2.

About this worksheet
A 1 to 120 chart with some numbers left out. Matches 1.NBT.A.1.
What kids practice
Place value is knowing that in 34, the 3 means 3 tens (30) and the 4 means 4 ones. It's the idea that makes every bigger math topic work, from adding two-digit numbers to money. In first grade, kids count to 120 and learn to see a number as tens and ones.
Watch for
- Writing the number the way it sounds, so "forty-two" becomes 402.
- Mixing up teen numbers, like writing 71 for seventeen.
- Counting the rods as ones (counting 3 rods as 3 instead of 30).
It's free to print, with an answer key. See the full tens and ones to 120 guide for 1st grade.
More sheets in this set
- See it all
1. 120 ChartEvery number from 1 to 120, with the tens column highlighted. - See it all
2. Tens and Ones Chart34 shown as 3 tens and 4 ones, plus 10 more, 10 less, 1 more and 1 less on a piece of the 120 chart.
3. Count Tens and OnesBase-ten block pictures to count as tens and ones, then write as a two-digit number.
4. Tens and Ones ChartA chart where some rows give the number and some give the tens and ones. Fill in the missing part.
6. 10 More and 10 LessFind 1 less, 10 less, 1 more and 10 more than each number without counting one by one. Matches 1.NBT.C.5.