21 x 6
126
Write the expression for
16 multiplied by the difference of 75 and 43
16 x ( 75 - 43)
When you see the key action word each it always means to do what or what
multiply or divide
48.6÷30=1.62
48.6÷3=
A. 0.162
B. 16.2
C. 162.0
D. 1620
B
Explain without calculating which symbol belongs
(7+15) x 18 81 x (15 + 7)
Less than because 7 + 15 and 15 + 7 have the same sum because of the commutative property. Therefore, I only compare 18 to 81. Since they are both multiplication and I know 81 is greater than 18; (7+15) x 18 is less than 81x (15 +7)
21 x 60
1260
25 x (10 + 3)
A plane carries 225 passengers on a flight. The average legroom for each passenger is 31 inches. What is the total amount of leg room for all the passengers?
6975
4.3 x 21 is about
______ x 20
______ x 20 = _______
4 x 20
4 x 20 = 80
Which symbol belongs
The difference between 13 fours and 6 fours
compared to
The sum of 2 fours and 5 fours
= to
13 - 6 = 7 fours
2 fours + 5 fours = 7 fours
Therefore, they are equivalent
210 x 60
12600
The sum of 75 and 43 times 16
(75 + 43) x 16
The art teacher buys containers to store 1,314 colored pencils. Each container holds 18 pencils. How many containers does the art teacher need to store all the colored pencils?
73 containers
253 x 804
203 412
Which equation can be represented by the model shown?
Responses
B
4800 divided by 100 = 48
210 x 600
126000
(11 x 3) - (5 x 4)
Roger sells 23 necklaces at a fair for a total of $201.25. Each necklace is sold for the same price. What is the price of one necklace?
$8.75
Solve 4.3 x 21
90.3
Graham and Julia each estimate the quotient of 4,875÷57. Graham estimates that the quotient is about 80. Julia estimates that the quotient is about 800.
Whose estimation is more reasonable and why?
Graham because of place value knowledge
If I round 57 to 60
and estimate 4875 to 4800
I know 48 divided by 6 = 8
I can cancel one zero off leaving one zero
so 80 is more reasonable
2.1 x 600
1260
The product of 11 threes and 5 fours
(11 x 3) x (5 x 4)
Gavin and Ethan are training for a race. Last week, Gavin ran 7 kilometers, and Ethan ran twice as far as Gavin. What is the total distance that Gavin and Ethan ran last week? Express your answer in meters.
7 x 2 = 14
14 + 7 = 21
21 kilometers = 21,000 m
463 divided by 60 =
Quotient
Remainder
Q = 61
R = 43
Piper solved this problem incorrectly.
6.2×41
Look at her work below and select the two statements that explain what Piper did incorrectly.
1 and 3