The Twist of Math

6.1 Writing Equations

100

The product of a number m and 2 is 8

m x 2 = 8

200

6 more than a number d is 10

d + 6 = 10

300

A number m increased by 5 is 15

 m+5=15

400

A number m less than 5 is 25

  5-m=25

500

A number L  decreased by 15 is 4

 L-15=4

6.2 Solving Equations using Addition and Subtraction

100

m/5 = 16; m = 4

4/5 = 16

No

200

S - 68 = 11 when s = 79

79 - 68 = 11

Yes

300

w + 23 = 41; w = 28

28 + 23 = 41

No

400

8b = 48; b = 6

8 x 6 = 48

Yes

500

19 - g = 7; g = 15

19 - 15 = 7

No

6.3 Solving equations using Multipilication or Division

100

s/10 = 7

s = 70

200

75 = 6 x w

w = 12.5

300

7x = 105 

x = 15

400

42 = 7k

k = 6

500

7b / 12 = 4.2

b = 7.2

6.4 Writing Equation in Two Variables

100

y = 2x ; (3,6)

6 = 6

Yes

200

y = 4x - 3 ; (4,12)

12 = 13x

No

300

y = 7x ; (2,21)

21 = 14

No

400

y = 5x + 1 ; (3,16)

16 = 16

Yes

500

y = 3x - 3 ; (1,0)

0 = 0

Yes

Randomized

100

J plus one equals 13

J + 1 = 13

200

x + 42 = 85; x = 43

43 + 42 = 85

Yes

300

6 = t/5

t = 30

400

y = 5x - 10; (3,5)

5 = 5 x 3 - 10 = 5

Yes

500

FREE SPOT

Free spot