Exploring Addition: Number Lines and Estimation Fun!

1. Sarah has 23 apples, and she buys 15 more. How many apples does she have now? Use a number line to help you visualize the addition.

• 28

• 30

• 35

• 38

Tags

CCSS.1.NBT.C.4

CCSS.2.MD.B.6

2. A bookstore sold 47 books in the morning and 36 books in the afternoon. Estimate how many books were sold in total by rounding to the nearest ten.

• 100

• 70

• 80

• 90

3. Tom collected 58 baseball cards, and his friend gave him 29 more. How many baseball cards does Tom have now? Show your work on a number line.

• 87

• 57

• 88

• 75

Tags

CCSS.1.NBT.C.4

CCSS.2.MD.B.6

4. In a school, there are 125 students in the 4th grade and 98 students in the 5th grade. Estimate the total number of students in both grades by rounding.

• 250

• 200

• 300

• 150

5. Lisa read 34 pages of her book on Monday and 29 pages on Tuesday. How many pages did she read in total? Use a number line to find the answer.

• 70

• 63

• 45

• 50

Tags

CCSS.1.NBT.C.4

CCSS.2.MD.B.6

6. A farmer has 150 chickens and buys 75 more. How many chickens does he have now? Estimate the total by rounding to the nearest hundred.

• 225

• 150

• 200

• 300

7. There are 45 red balloons and 37 blue balloons at a party. How many balloons are there in total? Use a number line to help you add.

• 82

• 75

• 90

• 70

Tags

CCSS.1.NBT.C.4

CCSS.2.MD.B.6

8. A toy store sold 68 toy cars and 54 toy trucks. Estimate the total number of toys sold by rounding to the nearest ten.

• 120

• 140

• 110

• 130

9. Emma has 82 stickers, and she receives 19 more from her friend. How many stickers does Emma have now? Show your work using a number line.

• 105

• 101

• 95

• 90

Tags

CCSS.2.NBT.B.6

10. A library has 245 books, and it receives a donation of 56 more books. Estimate the total number of books in the library by rounding.

• 250

• 300

• 400

• 310