Addition Doubles

Addition Doubles

Fast Facts

Number Bonds

Word Problems

Subtraction Surprise

100

1+1

1+1=2

100

2+3

2+3=5

100

Can you solve the number bond?

Wow!!

100

Five bugs are on a leaf. Two more join. How many bugs are there in all?

There are seven bugs in all!

100

10-2 -

10-2 =8

200

2+2

2+2=4

200

8+2

8+2=10

200

Can you solve the number bond?

Wow!!

200

Ten students are playing tag. One more joins in. How many students are playing tag now?

Eleven students are playing tag.

200

10-7=

10-7=3

300

3+3

3+3= 6

300

4+6

4+6=10

300

Can you solve the number bond?

Wow!!

300

There are some bugs on a leaf. Three more join them. Now there are nine bugs on the leaf. How many bugs were there in the beginning?
---- + 3 = 9

6 + 3 = 9

300

10-6=

10-6=4

400

4+4

4+4=8

400

5+4

5+4=9

400

Can you solve the number bond?

Wow!!

400

Some students are playing tag. Two more join them. Now there are ten students playing. How many kids were playing at the beginning?
----- + 2 = 10

8 + 2 = 10

400

10-5=

10-5=5

500

5+5

5+5= 10

500

5+2

5+2=7

500

Can you solve the number bond?

Wow!!

500

What is half of ten?

5 + 5 = 10

500

How are addition and subtraction related to each other?

Click to zoom