Skip Counting
Number Lines
Adding 3 2-digit Numbers
Result Unknown
Change/Start Unknown
100

Colt is skip-counting cookies for a party at school by 5s. He already counted 45 cookies. As he continues to skip count by 5s, what are the next five numbers he will count? 

Will the number 79 be a part of this pattern? 

50, 55, 60, 65, 70

No because the pattern is 5s and 0s

100

Place the following numbers on the number line below: 25, 60, 100

<-0--------------50---------------->

<-0-------25------50---60---------100->

100

Emma has 32 jelly beans. David has 24 jelly beans and Regina has 36. How many jelly beans do they have in all? 

92 jelly beans

100

Layla is 42 inches tall. Peter is 9 inches taller than Layla. How tall is Layla? Use drawings and equations to show your thinking

51 inches

100

Some students are in the cafeteria. 17 more students come to the cafeteria to eat. Now there are 72 students in the cafeteria. How many students were in the cafeteria to start with? Use drawings and equations to show your thinking.

55 students

200

Carlisle is skip-counting napkins for a party at school by 10s. He already counted 26 napkins. As he continues to skip count by 10s, what are the next six numbers he will count? 

36, 46, 56, 76, 86, 96

200

Samuel read for 22 minutes on Tuesday. He read for 37 minutes on Wednesday. How many minutes did he read in all? Use a number line to show your thinking.

59 minutes

200

Ally won tickets at the arcade. She won 29 tickets at the skee ball game, 41 tickets at the jump rope game, and 38 tickets at the whack a mole game. To find how many tickets she has in all, Ally first adds 29 and 41. Why might this be a good strategy? 

She is making a ten with the 9 and 1. 

200

There are 37 ducks in the lake. 24 more arrive. How many ducks are there?

61 ducks

200

There were 25 lightning bugs in a jar. Morgan caught some more lightning bugs. Now there are 87 lightning bugs in the jar. How many lightning bugs did Morgan catch? Use drawings or equations to explain your thinking. 

62 lightning bugs

300
What is ten less and ten more of the number 77? 


ten less - 67

ten more - 87 

300

Krispy Kreme sold 36 donuts before 10 o'clock in the morning. Dunkin' Donuts sold 48 donuts before 10 o'clock. How many donuts were sold before 10 o'clock in all? Use a number link to show your thinking. 

84 donuts

300

Dillon has 14 candy bars. Carlie has 12 candy bars. Matt has 19 candy bars. How many candy bars are there in all?

45 candy bars

300

10 + 54 = ____

Explain how you solved the problem. 

64

We had 5 tens and added one more ten. 

300

42 + _____ = 63

21

400

What is 5 less and 5 more of the number 83? 

5 less - 78

5 more - 88

400

Place the following numbers on the number line: 30, 45, 55

<-0--------------60>

<-0--------30--45---55---60>

400

Norm spent 44 minutes outside. Nathan spent 39 minutes outside. Nigel spent 11 minutes outside. How many total minutes did they spend outside? Use drawings or equations to show your thinking. 

94 minutes

400

Greg scored 21 points for his football team. Christian scored 28 points for his football team. How many points were scored in all? Use drawings or equations to show your thinking. 

49 points

400

There are some pumpkins in the patch. 27 pumpkins get picked in the first hour. There are now 71 pumpkins in the patch. How many pumpkins started in the patch? 

98 pumpkins

500

Finish the pattern: 

18, 23, 28, 33, ____, ____, ____, ____

Will the number 65 be a part of this pattern? Why or why not? 

38, 43, 48, 53

No, because the pattern is 3 then 8 in the ones place OR skip counting by 5. 

500

Charlie drove 42 miles last week. He has driven 39 miles so far this week. How many miles has he driven in all? Use a number line to show your thinking.

81 miles

500

Zora is shopping for school.  She spends $28 on shoes, $51 on clothes, and $12 on a backpack.  How much money did Zora spend? Solve the problem and explain your thinking.

$91

500

The parents at Little River School are putting up a fence around the playground. They bought 45 feet of fencing. They have used 32 feet. How many feet of fencing do they have left?

13 feet

500

Jeff shot 31 baskets on Saturday. He shot some more baskets on Sunday. Jeff shot a total of 67 baskets. How many baskets did he shoot on Sunday? 

36 baskets