Percent
Parts of a Number
Division Doesn't Always Mean Smaller
Multiples of 10
The Distributive Property
100

What is 10% of 30?

What is 3

10% = 1/10

30 divided by 10 = 3

100

What is 1/5 of 55?

What is 11

1/5 of 55 = 55 divided by 5


100

What is 4 divided by 1/2?

How many halves are there in 4?

What is 8

There are 2 halves in 1 so there are 4 (2) halves in 4

4(2) = 8

100

What is 30 x 10?

What is 300

3 x 1 = 3

Move decimal 2 places = 300

100

What is 6 x 24?

What is 144

6 x 24 = 6( 20 + 4)

6(20) + 6(4)

120 + 24 = 144


120 + 24 = 144

200

What is 25% of 80?

What is 20

25%= 1/4

80 divided by 4 = 20

200

What is 2/6 of 24?

What is 8

1/6 of 26 = 4   so 2/6 = 2 (4) = 8

200

What is 4 divided by 1/4?

How many fourths are there in 4?

What is 4

How many fourths are there in 1?

There are 4 one-fourths in 1

200

What is 280 divided by 7?

What is 40

28 divided by 7 = 4 

move the decimal one place to the right = 40

200

What is 83 x 3?

What is 249

3(83)= 3 (80 + 3)

3(80) + 3(3)

240 + 9 = 249


300

What is 20% of 40?

What is 8

20% = 1/5

40 divided by 5 = 8

10% of 40 = 4 so 20% = 2 x 4 = 8

 



300

What is 1/4 of 84?

What is 21

1/4 of 84 = 84 divided by 4 = 21

300

What is 5 divided by 1/4?

How many 1/4's  are there in 5?

What is 20

There are 4 one-fourths in 1 so there are 5 x 4 = 20 one - fourths in 5

300

What is 480 divided by 20?

What is 24

Divide both numbers by 10

48 divided by 2 = 24

300

What is 79 x 3?

What is 237?

3 x 70 = 3(70 + 9)

3(70) + 3(9)

210 + 27 = 237



400

What is 60% of 50?

What is 30

10% of 60 = 6

60% = 6 x 10% so 6 x 6 = 36

or 50% of 60 = 1/2 of 60 = 30

10% of 60 = 6 so 60% = 50% + 10% = 30 + 6 = 36



400

What is 3/7 of 56?

What is 24

1/7 of 56 = 8

3/7 of 56 = 3 ( 8) = 24

400

What is 4 divided by 2/5?

How many 2/5's are there in 4?

What is 10

There are 5 one-fifths in 1

so there are 4(5)= 20 one-fifths in 4.

2/5 is twice as big as 1/5 so there are half as many 2/5's as 1/5's

1/2 of 20 = 10

400

What is 6400 divided by 400?

What is 16

Divide both numbers by 100

64 divided by 4 = 16

400

What is 12 x 32?

What is 382

12 x 32 = 12(30 + 2)

12(30) + 12(2)

360 + 24 = 384


500

What is 15% of 660?

What is 99

10% of 660 = 66

5% = 1/2 of 10% so 5% of 660 = 1/2 of 66= 33

66 + 33 = 99

500

What is 2/3 of 27?

What is 18

1/3 of 27 = 9

2/3 = 2 (9) = 18

500

What is 6 divided by 2/3?

How many 2/3's are in 6?  

What is 9

How many 1/3's are in 6?  There are 3 one-thirds in 1 so 3(6) = 18 one-thirds in 6

Since 2/3 is twice as large as 1/3 there are half as many 2/3 as 1/3 so 18 divided by 2 = 9

500

What is 110 x 300


What is 33000

11 x 3 = 33

Move decimal point 3 places to right = 33000

500

What is 2 1/2 x 6?

What is 15

2 1/2 x 6 = 6 (2 + 1/2)

6 (2) + 6 (1/2)

12 + 3 = 15