Rounding Decimals
Addition with Regrouping
Subtracting with Zeros
Subtracting Decimals
Word Problems
100

Round 12.96 to the nearest tenth

13

100

Add 167,083 + 793,261

961,244

100

Subtract 83,000 - 69,749

13,251

100

Subtract 4.767 - 1.676

3.091

100

If a farmer has 118 oranges and 115 watermelons, how many fruits do they have?

233

200

Round 31.467 to the nearest hundredth

31.47

200

Add 3,486,874 + 6,875,297

10,362,171

200

Subtract 280,000 - 94,364

185,636

200

Subtract 49.794 - 0.896

48.898

200

If you have 287 apples and 198 are rotten, how many apples can you still eat?

89 apples

300

Round 25.977 to the nearest tenth

26.0

300

Add 67,987,321 + 76,978,312

144,965,633

300

Subtract 96,000,000 - 47,824,365

48,175,635

300

Subtract 97.3679 - 45.7789

51.589

300

If you have 876 watermelons and you eat 598, how many watermelons do you still have?

278

400

Round 16.965 to the nearest tenth

17

400

Add 769,321,685 + 432,169,783 + 421,691,738

1,623,183,206

400

Subtract 330,000,000 - 164,643,790

165,356,212

400

Subtract 9.57694 - 1.70798

7.77896

400

If it is 695 feet from Calvin's house to the library and 537 feet to the train station. How far is it from the Calvin's house to the train station?

1,232 feet

500

Round 31.999999 to the nearest thousandth.

32

500

Add 971422447+522821374+641271186+214585287

2,350,090,294

500

Subtract 50,000,000 - 32,694,372

15,305,628

500

Subtract 7.3684-1.4967

5.8717

500

There are 756 oranges. 79 get thrown away. Then 5,799 are bought. Then 411 get eaten and 16 or part of a smoothie. How many oranges are left?

6,049 oranges