Expanded Form
Equation
Place Value
Teacher's Choice
Mental Math
100

1,234 + 8,567

9,801

9,000 + 800 +1

100

1,879 + 676

2,555

2,000 + 500 + 50 + 5

100

What is the value of the tens digit when you add

5,555 + 5,555

11,110

10

100

Place value blocks 1456 + 8541

9,997

100

Use mental math to find the sum:

48 + 99

44 + 100 = 144

But since you weren't supposed to add 100, you were only supposed to add 99, you must subract 1

144-1 = 143

200

8,444 + 444

8,888

8,000 + 800 + 80 + 8

200
8520 + 3147
11,667
200

What is the value of the hundreds digit when you add

1111 + 7854

8,965

900

200
Expanded Form: 6593 + 4582
11,175
200

Use mental math to find the sum of 35 + 98

35 + 100 = 135

135 - 2 = 133

300

9,999 + 9,999

19,998

10,000 + 9,000 + 900 + 90 + 8

300
2568 + 2568
5,136
300

What is the value of the thousands digit when you add

6363 + 2222

8,585

8,000

300
Equation: 7566 + 8493
16,059
300

Use mental math to solve 

84 + 96

84 + 100 = 184

184 - 4 = 180

400

4,152 + 2,896

7,048

7,000 + 40 + 8

400
3216 +6549
9,765
400

What is the value of the tens digit when you add

3259 + 4444

7,703

zero

400
Free Choice: 9568 + 1284
10,852
400

Use mental math to solve

999 + 125

1,000 + 125 = 1,125

1,125 - 1 = 1,124

500

3,687 + 1,778

5,000 + 400 + 60 + 5

500

9, 8 4 5 +. 1, 6 2 5 =

11,470

500

What is the value of the thousands digit when you add

6,455 + 3,999

10,454

zero

500

What is the missing digit?

    6 ,  4  6  3

+  1 , __ 5  6

    8 ,  9  1  9

4

500

Use mental math to solve:

999 + 998 = ?

1,000 + 1,000 = 2,000

2,000 - 3 = 1,997

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