Add (1st Grade)
Unit Form (2nd)
100

1 + 3

4

100

How many 10s are in 100? 

10 tens

200

2 + 7

9

200
How many tens and ones in the number 12? 

1 ten and 2 ones

300

7+3

10

300

Write 123 in unit form using number bonds

See picture

400

10 + 5

15

400

What does the 7 in 273 stand for? 

70

500

12+ 7

19

500

count from 18 to 43 using ones and tens

18, 19, 20, 30, 40, 41, 42, 43

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