Question

Add and subtract the following problems using multiples of 10, 100.

1. 686 + 300 = _______

2. 345 + 600 = _______

3. 6348 – 10 = _______

4. 541 – 40 = _______

Answer 1

1.

6 + 3 = 9

686 + 300 = 986

2.

3 + 6 = 9

345 + 600 = 945

3.

4 – 1 = 3

6348 – 10 = 6338

4.

4 – 4 = 0

541 – 40 = 501