Add Across Hundreds

5 questions0m 0s

Learn the skill

Line up hundreds, tens, and ones. Add from the ones column. Exchange each group of ten for one in the next column.

Worked example

268 + 157: 8 + 7 gives 15 ones. Keep 5 ones and carry 1 ten. Then 6 + 5 + 1 gives 12 tens. Keep 2 tens and carry 1 hundred. The total is 425.

1. 146 + 238 = ? Answer

2. 275 + 168 = ? Answer

3. 389 + 247 = ? Answer

4. 456 + 327 = ? Answer

5. A library has 178 picture books and 256 chapter books. How many books altogether? Answer