10 more/less
Addition
Subtraction
Story Problems
Challenge
100

What is 10 more than 20?

30

100

12 + 6 = ?

12 + 6 = 18

100

18 - 9 = ?

9

100

There are 13 kids playing at the park. 7 more kids join them. How many kids are playing at the park now?

There are 20 kids playing at the park. 

13 + 7 = 20.

100

Are the numbers 14 and 41 the same or different? How do you know? 

No, 14 and 41 are not the same because in 14 there is only one group of ten and 4 extra ones. In 41, there are 4 groups of ten and 1 extra one. So, 41 is larger than 14.

200

What is 10 less than 50?

40

200

Find the missing part:

8 + ___ = 14

8 + 6 = 14

200

Find the missing part:

13 - ___ = 9

13 - 4 = 9

200

Jose has 12 cards, Madison has 21, and Kyle has 19. How many cards do the three have altogether?

52

12 + 21 + 19 = 52.

200

You have 34 toy cars. How many cars would you have if you had 10 more? How many cars would you have if you had 10 less? 

10 more than 34 is 44. 

10 less than 34 is 24. 

300

You have 34 toy cars. How many cars would you have if you had 10 more? How many cars would you have if you had 10 less?

10 more than 34 is 44. 10 less than 34 is 24.

300

23 + 42 = ?

23 + 42 = 65

300

63 - 6 = ?

63 - 6 = 57

300

Mike had some books. He gave his brother 19 of them. Now Mike has 62 books. How many books did Mike have to begin? Write an equation and solve it. 

62 + 19 = 81.

300

Jose has 21 more toy cars than Jen. Jen has 33 toy cars. How many toy cars does Jose have? Write an equation and solve using a strategy of your choice.

Jose has 54 toy cars.

33+21 = 54.

400

What is 10 more than 63?

73

400

27 + 51 = ?

27 + 51 = 78

400

67 - 4 - 3 =?

67 - 4 - 3 = 60

400

Mr. Hunt has 46 erasers. He buys 25 more erasers. How many erasers does Mr. Hunt have?

71 erasers

46 + 25 = 71

400

Rachel had two boxes of crayons. Box A had 16 crayons and Box B had 24 crayons. How many more crayons did Box B have? 

Box B had 8 more crayons than Box A.

24 - 16 = 8.

500

Fill in the missing numbers:

32  33  34  35

__  __  __  __

52  53  54  55

32   33  34  35

42  43  44  45

52   53  54  55

500

46 + 26 + 54 = ?

46 + 26 + 54 = 126

500

Eight tens and six ones - two tens and 7 ones =?

86 - 27 = 59

500

George has 54 Spider-Man stickers in his bag. Kennedy gave him 26 more stickers. Then, Kendall gave him 46 more the next day. How many Spider-Man stickers does George have now? 

54 + 26 + 46 = 126.

500

Fill in the next four numbers you count when skip-counting by 5s. 

55, ___, ___, ___, ___

55, 60, 65, 70,75

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