Show:
Addition
Subtraction
Multiplication
Division
True or False?
100

15+15=

30

100

30-15=

15

100

9x9=

81

100

12/6=

2

100

9x9=108

False, it's 81.

200

90+90

180

200

120-60=

60

200

10x10=

100

200

20/10=

2

200

144/12=12

True

300

35+35=

70

300

32-16=

16

300

20x20=

400

300

20/5=

4

300

36/6=5

False, it is 6.

400

240+240=

480

400

250-125=

125

400

400x4=

1600

400

40/4=

10

400

99/11=9

True

500

136+136=

272

500

272-136=

136

500

500x9=

3500

500

100/25=

4

500

180+180=340

False, it is 360.