Addition: no regrouping
Subtraction: no regrouping
Addition: regrouping
Subtraction: regrouping
Mixed word problems
100

3,412+1,503

4,915

100

8,304−2,103

6,201

100

476 + 389

865

100

4,328-1,119

3,209

100

A school library had 4,278 books. Over the summer, they bought 1,563 more books. How many books do they have now? 

4,278 + 1,563 = 5,841 books

200

4,205+2,103

6,308

200

 14,205−3,102

11,103

200

2,347 + 896  

3,243

200

 7,620−1,375

6,245

200

A farmer harvested 6,024 apples. He sold 2,738 of them at the market.
🍎 How many apples does he have left?

6,024 - 2,738 = 3,286 apples

300

12,304+3,201

15,505

300

9,630 − 5,410

4,220

300

4,678 + 7,954  

12,632

300

25,401−6,302

19,099

300

A toy company made 12,457 action figures in June and 9,836 in July.
🧸 How many action figures did they make in total?

12,457 + 9,836 = 22,293 action figures

400

7,620+1,375

8,995

400

12,854 − 11,632

1,222

400

23,486 + 8,759  

32,245

400

43,200−12,104

31,096

400

A city had 48,632 residents last year. This year, the number increased to 52,489.
🏙️ How many more residents live in the city this year?

52,489 - 48,632 = 3,857 more residents

500

24,001+6,302

30,303

500

56,703 − 23,481

33,222

500

67,894 + 58,769  

 126,663

500

90,001-45,675

44,326

500

A charity raised 75,846 dollars in donations. They spent 48,975 dollars on supplies and events.
💰 How much money do they have left?

75,846 - 48,975 = 26,871 dollars