Study

What number is this?

0%

0 0 0

What number is this?

twelve

3 + 8 = ...

11 (eleven)

9 + 7 = ...

16 (sixteen)

14 - 6 = ...

8 (eight)

What number is this?

eleven

What number is this?

thirteen

20 - 5 = ...

15 (fifteen)

2 + 17 = ...

19 (nineteen)

20 - 8 = ...

12 (twelve)

What number is this?

seventeen

13 - 8 = ...

5 (five)

What number is this?

fifteen

What number is this?

eighteen

What number is this?

nineteen

4 + 16 = ...

20 (twenty)

16 - 9 = ...

7 (seven)

What number is this?

sixteen

6 + 10 = ...

16 (sixteen)

19 - 10 = ...

9 (nine)

What number is this?

twenty