rounding nearest 10
addition
subtraction
multiplication
random facts
100

35

40

100

5 + 10

15

100

20-8

12

100

5x40

200

100

how many days in a year?

365

200

3

0

200

20 + 10

30

200

20-10

10

200

2x30

50

200

how many months in a year?

12

300

89

90

300

40 + 30

70

300

20-19

1

300

6x20

120

300

what season is it?

winter

400

17

20

400

20 + 50

70

400

20-5

15

400

90x1

90

400

what month is it?

February

500

11

10

500

100 + 10

110

500

20-16

4

500

14x10

140

500

what is another word people use for 12pm?

noon