Show:
adding tens
adding double digit numbers
Comparing number
True or False
100

10+10=

20

100

21+10=

31

100

12 __   7

><=

12>7

100

5+2=7

True 

200

2 tens + 2 tens =

4 tens

200
13+12=

25

200

25_26

><=

<

200

20+10=40

False

300

20+10=

30

300

37+23

60

300

65__44

><=

>

300

30<5

False

400

40+20=

60

400

24+56=

80

400

32_32

><=

=
400

5+10=5+10

true

500

60+40=

100

500

26+35=

61

500

45__54

<

500

25+12=30+7

True