Place Value Patterns: 10 More, 10 Less
Using place value to add or subtract 10
Place Value Patterns: 10 More, 10 Less
Using place value to add or subtract 10
Math - Grade 2-3
- 1
What number is 10 more than 34? Explain how the tens digit changes.
Adding 10 adds one ten.
The number 10 more than 34 is 44. The tens digit increases from 3 to 4, and the ones digit stays 4. - 2
What number is 10 less than 67? Explain how you know.
The number 10 less than 67 is 57. The tens digit decreases from 6 to 5, and the ones digit stays 7. - 3
Fill in the blanks: 45, 55, 65, __, __. What pattern do you see?
Look at the tens digit each time the numbers go up.
The missing numbers are 75 and 85. The pattern is adding 10 each time. - 4
Maya has 28 stickers. Her friend gives her 10 more stickers. How many stickers does Maya have now?
Maya has 38 stickers now. Adding 10 to 28 makes the tens digit go up by 1 while the ones digit stays 8. - 5
Use the place value blocks to find 10 less than 92.
Think of 92 as 9 tens and 2 ones.
Ten less than 92 is 82. Removing one ten from 92 leaves 8 tens and 2 ones. - 6
Circle the number that is 10 more than 71: 61, 72, 81, 91. Explain your choice.
The number 10 more than 71 is 81. Adding 10 changes 7 tens to 8 tens, and the ones digit stays 1. - 7
What number is 10 less than 100? Explain what happens to the tens and ones.
Count back by one ten from 100.
The number 10 less than 100 is 90. Taking away one ten from 100 leaves 9 tens and 0 ones. - 8
Write the number that belongs in the box: 39 is 10 less than __.
The missing number is 49. Since 39 is 10 less than 49, adding 10 to 39 gives 49. - 9
A frog starts on 56 on a hundreds chart and jumps down one row. What number does it land on?
On a hundreds chart, numbers in the same column have the same ones digit.
The frog lands on 66. On a hundreds chart, moving down one row usually adds 10. - 10
A frog starts on 83 on a hundreds chart and jumps up one row. What number does it land on?
The frog lands on 73. On a hundreds chart, moving up one row usually subtracts 10. - 11
Complete the table: Number 18, 40, 76. Write 10 more for each number.
Add 1 to the tens digit when you add 10.
Ten more than 18 is 28, ten more than 40 is 50, and ten more than 76 is 86. - 12
Complete the table: Number 29, 58, 90. Write 10 less for each number.
Ten less than 29 is 19, ten less than 58 is 48, and ten less than 90 is 80. - 13
Jamal counted 64 pennies. He put 10 pennies in a jar. How many pennies are left outside the jar?
Putting 10 away means you subtract 10.
There are 54 pennies left outside the jar. Subtracting 10 from 64 gives 54. - 14
Find the rule and complete the pattern: 12, 22, 32, 42, __, __, __.
The missing numbers are 52, 62, and 72. The rule is to add 10 each time. - 15
Look at the number line idea: start at 47, jump back 10, then jump forward 10. Where do you end? Explain.
Adding 10 and subtracting 10 undo each other.
You end at 47. Jumping back 10 gives 37, and jumping forward 10 brings you back to 47.