Doubles within twenty
Name: _____________________ Date: __________
Show your thinking with numbers, words, or a drawing.
1. Double 4 is ?
2. Double 5 is ?
3. Double 3 is ?
4. Double 1 is ?
5. Double 2 is ?
Answer key ยท Doubles within twenty
1. 8
Double means two equal groups of 4.
4 + 4 = 8.
2. 10
Double means two equal groups of 5.
5 + 5 = 10.
3. 6
Double means two equal groups of 3.
3 + 3 = 6.
4. 2
Double means two equal groups of 1.
1 + 1 = 2.
5. 4
Double means two equal groups of 2.
2 + 2 = 4.
Try it together
Make two equal groups of buttons or blocks. Count them together and say the double. Try another pair of equal groups.