Subtracting and Adding

adding

100

Find the Sum.

  1,456

  2,378

+ 5,398

9,232

200

Find the sum

 12,891

 23,901

+11,397

48,189

300

Find the sum

 2,834

 4,276

+7,281

14,391

400

Find the sum.

  25,872

  34,652

+12,873

73,397

500

Find the sum

   135,902

   234,981

+ 438,917

809,800

Subtracting across zeros

100

Find 5,000- 3,350

1,650

200

Find 7,000- 2,348

4,652

300

Find 8,000- 5,671

2,329

400

Find 2,000- 785

1,215

500

Find 10,000- 7,275

2,725

Subtracting

100

Find the difference

   8,456

- 6,532

1,924

200

Find the difference

  7,298

- 3,879

3,419

300

Find the difference and then use addition to check your answer.

 38, 238

-17,459

20,779

400

Find the difference and then use addition to check your answer.

  45,219

-25, 879

19,340

500

Find the difference.

8,746

- 975

7,771

Rounding

100

Classroom Books

Round each total of books to the nearest thousands and find the sum.

Classroom.         Books

3                    4,239

4                    7,891

5.                   5,298

4,000

8,000

5,000

17,000 books

200

Round the following numbers to the nearest ten thousands place and add.

1. 19,245

2. 26,321

3. 45,321

20,000

30,000

50,000

100,000

300

Round the following numbers to the nearest hundred and find the sum.

1. 4,390

2. 12,345

3. 9,871

4,400

12,300

9,900

26,600

400

Estimate the total number of candy by rounding each number to the nearest thousand and finding the sum.

Candy                 Amount

Skittles                    3,982

Peanut butter cup      5,123

Gummy bears.          2,127

4,000

5,000

2,000

11,000

500

Round the following numbers to the nearest thousands and find the sum.

123,901

235,871

190,345

124,000

236,000

190,000

550,000

Equations

100

Complete the equation to make it true

(5,689 + 80) + 6 = _________ +(80 +6)

5,689

200

Complete the equation to make it true.

2,398 +( 112 +73) = (2,398 + _____) + 73

112

300

Lilly used addition properties to rewrite the equation below. Select all the equations Lilly might have written for

2,987 + 1,871 + 1,250 = m

1. 2,987+ 1,250 +1,871 =m

2. 1,871 + 2,987 =m

3. (2,987 +1,871) + 1,250 =m

4. 2,900 + 1,800 +1,200 + (87 + 71 +50) =m

1, 3, 4

400

Conor wrote addition equations using addition properties. Which equations would be correct?

4,575 + 3,125 + 8,350 = j

1. (4,575 + 3,125) + 8,350 =j

2. 8,350 +4,575 = j

3. (4,000 +3,000 + 8,000) + (575 +125 +350) =j

4. 4,570 + 3,125 + 8,350 = j

1, 3

500

Complete the equation to make it true.

3,456 + (2,348 + 450) = (3,456 + ______) + 450

2,348