First Grade Math Apps - Place value - Numbers to 20 Worksheet

Grade 1: Numbers To 20

1.NBT.2.2 The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones.

1. Count the ones and tens in the following number.
2. Choose the number which has 1 ten.
3. Which model shows the number 15?
4. Which option shows the same number as the model?
5. Which is not equal to the number shown by the model?
6. Doug draws the following model for the number 13 but makes a mistake. Correct the model.
7. Roger has 10 apples in a bag and 3 in another bag. How many apples are there in all?
8. Which is a different way to represent the following?
9. Bob has 10 blue marbles and 2 orange marbles. How many marbles does Bob have in all?
10. How many sticks are there?