1. Ten More, Ten Less Hundred More, Hundred Less
By Mrs. Justine Buonovolonta
Resource Room Teacher
Wood Park Primary School

2. *TIP* Print this page to use with your child.

3. *TIP* Print this page to cut apart and use with your child.

6. *TIP* Consider using concrete/pictorial items to represent the place value that is being added and sticky notes to cover when showing less.

7. So here is a visual that can be used to support mental math understanding of 10 more and 10 less.

8. 1 more, 1 less Visualize the number 46 on the hundreds board.
If I want 1 less (1 ones less), I will be subtracting the number of ones, so I will move left to 45.
If I add 1 more (1 ones more), I will be increasing the number of ones, so I will move right to 47.
1 more, 1 less

9. 10 more, 10 less Visualize the number 46 on the hundreds board.
If I want 10 less (1 ten less), I will be subtracting the number of tens, so I will move up to 36.
If I add 10 more (1 ten more), I will be increasing the number of tens, so I will move down to 56.
10 more, 10 less

10. *TIP* Consider using concrete/pictorial items to represent the place value that is being added and sticky notes to cover when showing less.

11. Crossing A Benchmark Ten
1 less than 60……

12. Crossing A Benchmark Ten
1 less than 60…… is 59.

13. 1 more than 29……

14. 1 more than 29……is 30

15. 1 less than 280……

16. 1 less than 280……is 279

17. 10 less than 302……

18. 10 less than 302……is 292.

19. Thanks for learning and being a HELPING HAND!