Percent reduction of a number (10% multiples) - Concept Intro (Level 1)

This math topic focuses on calculating the percent reduction of a number by multiples of 10%, serving as an introductory concept to percentages. The problems require understanding how to decrease a given number by 10%, 20%, or 30%, and identifying the resulting value from a set of multiple-choice answers. Each question provides initial guidance by mentioning the value of 10% of the number, which reinforces the computation concept of finding a percentage of a given number.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

Percent reduction of a number (10% multiples) - Concept Intro Worksheet

Math worksheet on 'Percent reduction of a number (10% multiples) - Concept Intro (Level 1)'. Part of a broader unit on 'Percentages - Intro' Learn online: app.mobius.academy/math/units/percentages_intro/

1

10% of 30 is 3. What is 20% less than 30

Calculate the final number when it changes by a percentage

a

29

b

24

c

25

d

16

e

12

f

17

2

10% of 40 is 4. What is 20% less than 40

Calculate the final number when it changes by a percentage

a

35

b

32

c

46

d

21

e

24

f

30

3

10% of 40 is 4. What is 30% less than 40

Calculate the final number when it changes by a percentage

a

38

b

18

c

36

d

21

e

28

f

17

4

10% of 100 is 10. What is 20% less than 100

Calculate the final number when it changes by a percentage

a

88

b

100

c

92

d

80

e

48

f

60

5

10% of 20 is 2. What is 20% less than 20

Calculate the final number when it changes by a percentage

a

9

b

23

c

11

d

22

e

16

f

17

6

10% of 50 is 5. What is 20% less than 50

Calculate the final number when it changes by a percentage

a

40

b

22

c

56

d

30

e

54

f

28

7

10% of 60 is 6. What is 30% less than 60

Calculate the final number when it changes by a percentage

a

61

b

57

c

29

d

46

e

42

f

21