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Skip Counting and Comparing
Subtraction
Addition
Adding Expanded Form
Standard Form
100
start at 120 and skip count by 10s, what is the 4th number?
160
100
50-20
30
100
26+ 14+30 + 40
110
100
600 + 50 + 7
657
100
forty eight
What is 48
200
411 _____ 114
>
200
120-30
90
200
_____ + 42 = 60
18
200
700 + 80 + 5
785
200
seventy eight
What is 78
300
207, ____, 407, 507
307
300
132-100
32
300
302 + 100 + 8
410
300
942 = 900 +____ +2
40
300
one hundred fifty two
What is 152
400
256 ____ 526
<
400
343- 123
220
400
20+ 30 + 40
90
400
542= ____ + 40+ 2
500
400
three hundred eighty one
What is 381
500
453, 443, _____, 423, 413
433
500
765- 85
680
500
35+ 35 + 15
85
500
235= _____ +30 +______
200, 5
500
six hundred twenty one
What is 621