Common Core: 1.NBT.C.5
Problem 19 of 27g1-019
The blocks show 46. What number is 10 more than 46?
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Solution walkthrough0:53
- Each long rod is 10. Count the tens: 10, 20, 30, 40. And 6 ones. That is 46.
- Ten more means one more rod. Count the tens again: 10, 20, 30, 40, 50.
- 5 tens and 6 ones make 56. The ones did not change. 10 more than 46 is 56.
- Ten more adds a rod. Ten less takes a rod away. The ones stay the same. Great thinking!