What to do first?
What operation should be performed first in the following equation?
2(32 + 18) ÷ 4
(32 + 18)
2(32 + 18) ÷ 4
25
90 ÷ 5 (3 X 2) − 1
90 ÷ 5(6)-1
90 ÷ 30-1
3-1
2
They should have divided 90 by 5 before multiplying 6 X 5. Division and multiplication are the same level of power.
When solving this expression, what is the SECOND step?
7 + 5 (20 – 8) x 3
5 X 12
Jose ran 3 miles this week. Frank ran 4 times as many miles as Jose.
Which expression shows how many miles Jose and Frank ran altogether?
A. (3 + 4) x 3
B. 3 + (4 x 3)
C. (3 x 4) x 3
D. 3 x (4 + 3)
B. 3 + (4 x 3)
What operation should be performed first in the following equation?
10[3 + (7 + 5) ÷ 3]
(7 + 5)
10[3 + (7 + 5) ÷ 3]
70
10 + 2 (12 − 3)
10+2(9)
12(9)
108
They should have multiplied 2 X 9 before addition.
When solving this expression, what is the SECOND step?
36 + 9 x 10 ÷ 2
90 ÷ 2
Michelle bought 20 bananas. She ate 2 bananas on her way home from the store. When she got home she split the bananas into 2 bowls. Which expression shows how many bananas are in each bowl?
A. 20 – (2 ÷ 2)
B. (20 - 2) x 2
C. (20 – 2) ÷ 2
D. 20 - 2 ÷ 2
C. (20 – 2) ÷ 2
What operation should be performed first in the following equation?
[2(3.50 + 4.25) + 4.85] - 0.90
3.50 + 4.25
[2(3.50 + 4.25) + 4.85] - 0.90
19.45
23 + 24 ÷ 2 ∙ 6 − 3
8 + 24 ÷ 2 X 6 – 3
8 + 24 ÷12 – 3
8 + 2 – 3
10-3
7
They should have divided 24 by 4 before multiplying 2 X 6
When solving this expression, what is the SECOND step?
72 + (8-2) x 3
6 X 3
At the bake sale cookies cost $0.50, and brownies cost $1.00. Which expression shows the total cost of 3 cookies and 2 brownies?
A. 0.50 + 1.00 x 5
B. 0.50 x (3 + 1.00) x 2
C. (0.50 x 2) + (1.00 x 3)
D. (0.50 x 3) + (1.00 x 2)
D. (0.50 x 3) + (1.00 x 2)
What operation should be performed first in the following equation?
4[4.5 - 2(1.2)]
2 X 1.2
4[4.5 - 2(1.2)]
8.4
40 − 2 + 4 X 3
40 – 2 + 12
40 – 14
26
The should have subtracted 2 from 40 before adding 12. Addition and subtraction are the same level of power. They are solved left to right.
When solving this expression, what is the SECOND step?
82 + (42 ÷ 7) x 4
6 X 4
Carlos sharpened 8 packs of pencils with 24 pencils in each pack. He gave 32 pencils to his classmates. Which expression shows how many pencils Carlos has left?
A. (8 x 24) - 32
B. 8 x (24 – 32)
C. (24 + 8) - 32
D. 24 + (8 x 32)
A. (8 x 24) - 32
What operation should be performed first in the following equation?
1/4 + (2 X 5)
2 X 5
1/4 + (2 X 5)
10 1/4 or 10.25
8 + (3.45 X 3) X 2
8 + 10.35 X 2
18.35 X 2
36.7
When solving this expression, what is the SECOND step?
4[3 + (4.5 -2.3)]
3 + 2.2
Jessica made $40 selling lemonade. Her best friend Sandra made three times as much as Jessica. Which expression shows how much money they made altogether?
A. 40 x 3
B. 40 + (3 x 40)
C. (40 + 3) x 40
D. 40 x (3 x 40)
B. 40 + (3 x 40)