Number Name
Addition
Subtraction
20's
Number Name
100

What number is this: 17

What is seventeen


100

11+3=

What is 14

100

3-2=

What is 1

100

What is this number: 21

What is twenty one

100

What is this number: 11

What is eleven

200

What number is this: 13

What is thirteen


200

10+7=

What is 17

200

8-5=

What is 3

200

What is this number: 23

What is twenty three
200

What is this number:14

What is fourteen

300

What number is this: 16

What is sixteen


300

13+2=

What is 15

300

11-3=

What is 8

300

What is this number: 26

What is twenty 6

300

What is this number: 15

What is fifteen

400

What number is this: 19

What is nineteen

400

12+6=

What is 18

400

16-5=

What is 11

400

What is this number: 27

What is twenty seven
400

What is this number:12

What is twelve

500

What number is this: 20

What is twenty

500

14+6=

What is 20

500

20-17=

What is 3

500

What is this number: 29

What is twenty nine

500

What is this number:18

What is eighteen