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Equivalent Equations
Factors
Work it out!
Multiplying Madness
Miscellaneous
100

True or False

30 x 9 = 9 x (3 + 10)

False

30 x 9 = 9 x (3 + 10)

270 = 9x13

270 = 117

100
List all of the factors for the number 30.

1, 2, 3, 5, 6, 10, 15, 30.

100

Michelle saved 4 times as much money as her brother, Sam. He saved $40. How much money did Michelle save? 

4 x 40 = 160

100

12 x 16 = 

192

100

Pablo says there are 3 tens in 230. Hunter says there are 23 tens in 230. Their teacher says they are both right. How can that be? Explain.

There is a 3 in the 10 place value, there is also a total of 23 tens in the whole number.
200

True or False

16 x 18 = (16 x 10) + (16 x 8)

True

16 x 18 = (16 x 10) + (16 x 8)

200

List all of the factors for the number 36.

1, 2, 3, 4, 9, 10, 12, 18, 36

200

Kendra earns money washing windows. She makes 25 cents for each window she washes. If she washes 9 windows, how much money does she make?

25 x 9 = 

20 x 9 = 180

5 x 9 = 45

180 + 45 = 225

200

100 x ____ = 400

4

200

See question #4

Fill in the blanks in the ratio table. 

8  __  32  __  __  80  __

1  2   __   5    9  __   20

16, 4, 40, 45, 10, 160

300

True or False

3 x 300 = (3 x 3) x 100

True

3 x 300 = (3 x 3) x 100

300

List all of the factors for the number 42.

1, 2, 3, 6, 7, 14, 21, 42

300
One day, Kendra and her friend Amy washed windows together. They earned $25 and split it evenly. How much money did they each get?

$25 / 2 = 12 R 1 = $12.50 each

300

50 x ____ = 250

5

300

Which of these numbers is prime?

17

21

27

34

17

400

True or False

21 / 2 = 11 R 1

False

2 x 10 = 20 + R1

400
List all of the factors for the number 48.

1, 2, 3, 4, 6, 8, 12, 16, 24, 48

400

Carter also washes windows. He charges 10 cents for small windows and 25 cents for large windows. I

If Carter washes 13 small windows and 18 big windows, how much money does he make? 

(13 x 10) + (18 x 25) = 

130 + 450 =

580 = $5.80

400

20 x 6 = ____

120

400

Fill in the blank.

(29 x 30) = (20 x 30) + (____ x 30)

9

500

Fill in the blank.

15 x 10 = (___ x 10) + (5 x 10)

10

500

List all of the factors for the number 70.

1, 2, 5, 7, 10, 14, 35, 70

500
Spencer has 270 marbles. Jake said, "Spencer has 3 times as many marbles as I do!" Which equation could represent this situation. (j stands for Jake's marbles)

 270 x 3 = j

3 x 270 - j

3 x j = 270

270 x j = 3

3 x j = 270

500

30 x ____ = 120

4

500

Sara was cleaning her room. She found 17 tiny toy cars and decided to give them to her 2 brothers. 

Sara divided the 17 tiny cars evenly between the 2 boys. Which equation shows how things worked out?

17 / 2 = 8 R1

17 / 2 = $8.50

17 / 2 = 8 1/2

Explain your choice. Why did you choose that equation?

17 / 2 = 8R1

 I chose this equation because there could be one car left over, the problem isn't talking about money and you can't cut a car in half.