Home > First Grade Math > O.4 Add and subtract multiples of ten
O.4 Add and subtract multiples of ten
Add.
20 + 50 =
Subtract.
100 − 30 =
60 + 30 =
80 − 50 =
70 − 40 =
40 + 20 =
50 + 30 =
10 + 30 =
70 − 30 =
60 − 20 =
30 + 40 =
50 + 20 =
40 − 10 =
90 − 20 =
90 − 40 =
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