What's First?
Identify what operation you would do first in the following expression. Explain.
(16+4)÷10
You would solve 16+4 first because it is in parenthesis.
(78+47)÷25
5
Write a numerical expression for the following phrase.
Add 15 to the product of 3/4 and 12.
(3/4 x 12) +15
Without doing any calculations, write <, >, or =.
72x(37-9) ____ 69x(37-9)
72x(37-9) _>_ 69x(37-9)
Which of the following is equal to 10?
A. 2x(45÷9)
B. 24-(7x3)
C. 1+(4x2)
D. (2x25)x5
A. 2x(45÷9)
B. 24-(7x3)
C. 1+(4x2)
D. (2x25)x5
Identify what operation you would do first in the following expression. Explain.
(15÷3) - (22+5)
You would solve 15 ÷ 3 first because it is in parenthesis and is division.
4+8x6÷2+3
31
Write a numerical expression for the following phrase.
Find the difference of 29 and 13, and then divide by 2.
(29-13)÷2
Without doing any calculations, write <, >, or =.
(144÷12)-6____144÷12
(144÷12)-6_<_144÷12
Which of the following is equal to 25?
A. 22+(9x3)
B. 50÷(10-5)
C. 5x(13-8)
D. 17+(40÷4)
A. 22+(9x3)
B. 50÷(10-5)
C. 5x(13-8)
D. 17+(40÷4)
Identify what operation you would do first in the following expression. Explain.
{2[15+5 - 22 x 3]}
You would solve 22 x 3 because it is in the brackets and is multiplication.
[(8x25)÷5]+120
160
Write a numerical expression for the following phrase.
Add 1 1/2 and 3/4, and then subtract 1/3.
(1 1/2 + 3/4) - 1/3
Without doing any calculations, write <, >, or =.
(4+1/2+3)x2 ____2x(4+1/2+3)
(4+1/2+3)x2 _=_2x(4+1/2+3)
Which expression is 16 times as large as 18,233-4,006?
A. (18,233-4,006)+16
B. (18,233-4,006)x16
C. (18,233-4,006)÷16
D.(18,233x16) -4,006
A. (18,233-4,006)+16
B. (18,233-4,006)x16
C. (18,233-4,006)÷16
D.(18,233x16) -4,006
Identify what operation you would do first in the following expression. Explain.
55÷11-3+10x2
You would solve 55÷11 first because it is division and you solve those problems left to right.
80-(0.4+0.2)x10
74
Write a numerical expression for the following phrase.
Multiply 1.2 by 5 and then subtract 0.7.
(1.2x5)-0.7
Describe how the value of Expression A compares to Expression B.
A. 1 1/2 x (54÷2/5)
B. 54 ÷ 2/5
Expression A is 1 1/2 times more than Expression B.
Which of the following is equal to 84?
A. 3x(10+2)x0
B. 2x(5+3)x4
C. 3x5+2x4
D. 3x(5+2)x4
A. 3x(10+2)x0
B. 2x(5+3)x4
C. 3x5+2x4
D. 3x(5+2)x4
Identify what operation you would do first in the following expression. Explain.
122-10 x 33-12+3
Your would solve 122 first because when there are no parenthesis, you solve exponents first.
22-{[(87-32)÷5]x2}
0
Write a numerical expression for the following phrase.
Add the quotient of 120 and 3 to the product of 15 and 10.
(120÷3) + (15x10)
Describe how the value of Expression A compares to Expression B.
A. 18+1/2
B. 2 1/3 x (18+1/2)
Expression B is 2 1/3 times as large as Expression A.
Which of the following is equal to 17?
A. 7+(3x4)-2
B. 7+3+4-2
C. 7+3x(4-2)
D. 7-(3x4)-2
A. 7+(3x4)-2
B. 7+3+4-2
C. 7+3x(4-2)
D. 7-(3x4)-2