Adding and subtracting within 1000

Add It Up

100

47 + 15 

62

200

123 + 54

What is 177?

300

39 + 57

What is 95?

400

112 + 95 

207

500

Explain in words how you regroup.

Answers vary

Fill in the Blank

100

632 + _________ = 675

What is 43?

200

43_ + 3_5 = _38

What is 433 + 305 = 738?

300

4_ _ + _26 = 823

497 + 326 = 823

400

173 + 24

173 + 24 = 197

500

A chicken laid 240 eggs one year. The next year, she laid 148 eggs. How many eggs did she lay in all? 

240 + 148 = 388 eggs 

Adding More Numbers

100

28 + 13 + 16

28 + 13 + 16 = 57

200

27 + 13 + 15 + 36

27 + 13 + 15 + 36 = 91

300

32 + 19 + 4

32 + 19 + 4 = 55

400

110 + 20 + 35 + 6

110 + 20 + 35 + 6 = 171

500

Mark read 295 pages in his book. Grace read 123 pages more than Mark. How many pages did Mark and Grace read altogether?

295 + 123 = 418 (Grace)

495 + 418 = 913 (Grace + Mark)

Guess My Number

100

I have two numbers. The first number is 5 more than the second number. I get 15 when I had the two numbers together. What are my two numbers?

10 + 5 = 15

200

I have two numbers. The first number is 4 more than the second number. When I add the two numbers together, I get 12. What are my two numbers?

8 + 4 = 12 

300

I have two numbers. The first number is 15 more than the second number. When I add the two numbers together, I get 45. What are my two numbers?

30 + 15 = 45

400

I have two numbers. The first number is 100 more than the second number. When I add the two numbers, I get 710. What are the two numbers?

405 + 305 = 710

500

I have two numbers. The first number is 100 less than the second number. I get 910 when I had the two numbers. What are my two numbers?

405 + 505 = 910