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Description: Mentally add 10 or 100 to a given number 100-900, and mentally subtract 10 or 100 from a given number 100-900.
Worksheet 9673 - Mentally add 100 to or subtract 100 from a number between 100 and 900:
1. 734 - 100 = |
6. 871 + 100 = |
2. 804 + 100 = |
7. 526 - 100 = |
3. 558 - 100 = |
8. 552 - 100 = |
4. 276 + 100 = |
9. 211 - 100 = |
5. 177 - 100 = |
10. 430 + 100 = |
Printable #: 9673-CCSS.Math.Content.2.NBT.B.8
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