Multiplication patterns
Expressions
Word Problems
Computation
Miscellaneous
100

21 x 6

126

100

Write the expression for

16 multiplied by the difference of 75 and 43

 16 x ( 75 - 43)

100

When you see the key action word each it always means to do what or what

multiply or divide

100

48.6÷30=1.62

48.6÷3=

 A. 0.162

B. 16.2

C. 162.0

D. 1620

B

100

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)

200

21 x 60

1260

200
25 times the sum of 10 and 3

25 x (10 + 3)

200

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

200

4.3 x 21 is about

______ x 20

______ x 20 = _______

4 x 20

4 x 20 = 80

200

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

300

210 x 60 

12600

300

The sum of 75 and 43 times 16

(75 + 43) x 16

300

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

300

253 x 804 

203 412 

300

Which equation can be represented by the model shown?

 



Responses

  • 4,800÷10=48
  • 4,800÷100=48
  • 4,800×10=48
  • 4,800×100=48


B

4800 divided by 100 = 48

400

210 x 600

126000

400
The difference between 11 threes and 5 fours

(11 x 3) - (5 x 4)

400

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

400

Solve 4.3 x 21 

90.3

400


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


500

2.1 x 600

1260

500

The product of 11 threes and 5 fours

(11 x 3) x (5 x 4)

500

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

500

463 divided by 60 = 

Quotient

Remainder

Q = 61

R = 43

500

Piper solved this problem incorrectly.

6.2×41

Look at her work below and select the two statements that explain what Piper did incorrectly.

  • Piper incorrectly wrote 2,522 tenths in standard form.
  • Piper set up her model incorrectly.
  • Piper’s partial products are not all correct.
  • Piper added the partial products incorrectly.

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