Equal or Not Equal
17 + 18 = 7 x 5
Equal - both equal 35.
24 - t =15
t=?
t = 9
Read this inequality out loud: x <4
x is less than or equal to 4
Yeva started with 24 pieces of lego. He built a structure and has 15 pieces left. Which equation will tell us how much lego he used?
24-l = 15
10+12+12 = _____ - 20
10 +12+12 = 22+12=34
54-20 = 34
The answer is 54
12 x 12 = 150 - 5
Not equal, 12 x 12 = 144 and 150- 5 = 145
12b = 132
b=?
b = 11
Read this inequality out loud.
x - 5 <7
x decreased by 5 is less than or equal to 7
Jordan ran 23 laps around the gym yesterday and 26 more laps today. Which equation will tell us how many laps he ran in total?
23+26=l
34+34 = ____ + 8
60
93 - 19 = 8 x 9
Not equal
93 - 19 = 93 - 20 = 73 + 1 = 74 and 8 x 9 = 72
80 - p = 23
p=?
p = 57
Sachin says for this inequality x + 2>8
Possibilties for x are
x = 7, 8, 9, 10.. etc
Is he right?
No, he needs to include 6 as well. 6 +2 = 8
David Ba has 18 pokemon cards. He wants to share them equally with 2 friends and himself. How many cards will each person get?
18 ÷ p = 6
9x4=____+6
30
121 ÷ 11 - 1 = 3 x 4
Non-equal 121 ÷ 11 = 11 - 1 =10 and 3 x 4 = 12
35 ÷ p = 7
p=
p = 5
Sophia P says for this inequality 67 - x<5
Possibilties for x are
x = 67, 66, 65, 64, 63
Is she right?
Yes, 67 - 67 = 0, 67-63 = 4 so the numbers in between 67 and 63 are also true.
Lian bought 18 bouncy balls. Her friend Angelica also bought some bouncy balls. When they counted all of them together, they had 30 bouncy balls. Which equation will show how many bouncy balls Ariel bought?
18 + a = 30
12 x 5 - 2= 5 x 7 + ___
12 x 5 = 60 - 2 = 58
5 x 7= 35 + 20 = 55 + 3 = 58
the answer is 23
42 ÷ 7 = 48 ÷ 8
Equal - both equal 6
8g + 2 = 18
g=
g = 2
Tell possibilities for x for this inequality 2x<10
x = 4, 3, 2, 1, 0
Ms. Nishio and her sister love baking cookies. Ms. Nishio baked 2 dozen cookies. They made a total of 60 cookies in total. How many cookies did her sister bake? Write your own equation that could tell us how many cookies her sister baked. Then, solve the equation.
2 dozen = 2 x 12 = 24
24 + c= 60
c = 36
79+8= 22+____
79 + 8 = 87
87 - 22 = 65
The answer is 65.