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Double Facts
100

12 = S X 4 

S=3

100

A number times 4 equals 16

n x 4 = 16

100

( 10 - 4) + 2= 

8

100

16 - 4 + 7 = 19

(16 - 4) + 7= 19

100

2 threes

6

200

M X 8=32

M=4

200

25 times a number equals 50

 25 X B= 50

200

___= (12 + 2) - 5

9

200

2 = 22 - 15 + 5 

2 = 22 - ( 15 + 5)

200

3 fives

15

300

 D X 3 =27

D=9

300

7 times a number equals 14

7 X W= 14

300

4 x (7 - 2)= ___

20

300

3 + 7 x 6 = 60

(3 + 7) x 6 = 60

300

10 tens

100

400

N X 6 =54

N=9

400

100 is equal to 25 times a number

100 = 25 X H

400

(35 +10 ) + 5 = ___

50

400

5 = 10 divide 10 + 5

5 = (10 divide 10) + 5

400

6 threes

18

500

P X 7 =49

P=7

500

a number times 4 equals 400

C x 4 = 400

500

9 + ( 10 - 2) = ____

17

500

36= 4 x 25 - 16

36= 4 x (25 - 16)

500

100 fives

500