Solving equations 1

Show:

Questions Responses

Addition

Addition2

Subtraction

Subtraction2

100

x + 4 = 12

x = 8

100

x + 9 = 12

x = 3

100

x - 2 = 6

x = 8

100

x - 5 = 10

x = 15

200

x + 11 = 16

x = 5

200

x + 4 = 13

x = 9

200

x - 7 = 11

x = 18

200

x - 7 = 12

x = 19

300

x + 14 = 20

x = 6

300

x + 16 = 25

x = 9

300

x - 9 = 7

x = 16

300

x - 4 = 8

x = 12

400

x + 30 = 33

x = 3

400

x + 23 = 30

x = 7

400

x - 21 = 12

x = 33

400

x - 23 = 7

x = 30

500

x + 17 = 33

x = 16

500

x + 45 = 60

x = 15

500

x - 45 = 11

x = 56

500

x - 13 = 29

x = 42