Ant
Bell
Car
Duck
Egg
100

x + 3 = 13

x = 10

100

x + 5 = 6

x = 1

100

20= x + 17

3

100

a + 9 = 21

a=12

100

What type of math uses letters?

Algebra

200

x - 5 = 15

x =10

200

12 = x + 4

x = 8

200

x - 15 = 20

35

200

f= 249 + 249

f = 498

200

What is the name for a letter that stands for an unknown number?

Variable

300

A + 4 = 10

A = 6

300

15 = x - 3

x = 18

300

10 + x = 15

x = 5

300

g = 999 - 222

g= 777

300

What is the difference between an equation and an expression?

An equation has an equal sign.

400

x + 2 =17

x = 15

400

4 = x + 1

x = 3

400

x - 5 = 8 + 1 + 1

x = 15

400

k = 2560 + 25

k=2585

400

Make up an algebra problem and solve

500

x + 4 = 10 + 10

x=16

500

5 + 3 + x = 15

x = 7

500

2 + 3 + 8 + x = 20

x=7

500

d = 896 - 896

d = 0

500

Combine like terms

2x + 3x + 6 + 9

5x + 15

600

Combine like terms

6x + 6y + 2x + 2y + 4 -️ 3

8x + 8y + 1

600

Y + (6-1) + 10 = 20

Y = 5

600

3 - 2 + 9 + D = 25

D = 15

600

Combine like terms

5 - 4 + 6 + 2j + 9j + 8r - 7r

7 + 11j + 1r

600

Combine like terms then solve

2c + 8c + 19u - 18u + 2p + 6p

10c + 1u + 8p

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