Addition and Subtraction with Rounding

Mrs. Hinson wants to solve the problem 27 + 91 by rounding the numbers to the nearest ten. What problem would Mrs. Hinson have if she rounded the numbers?

• 30+20

• 30+90

• 30+100

• 30+10

What is 54 rounded to the nearest ten?

• 50

• 60

• 100

• 55

I am rounding to the nearest 100. What will 368 round to according to the number line?

• 400

• 300

• 350

The store has 150 baseballs. At the end of the month, there were 81 baseballs left. How many baseballs did the store sell?

• 69 baseballs

• 59 baseballs

• 70 baseballs

• 68 baseballs

Round then add.
27 + 64 =

• 80

• 100

• 70

• 90

Steven has 7,171 balloons for the parade. Adriana has 6,321 balloons for the parade. Approximately how many balloons do they have together?

• 13,492

• 13,000

• 14,000

• 13,500

Round to the nearest hundred to estimate:
1,245 + 482

• 1,700

• 1,800

• 1,900

• 2,000

Round these numbers to the nearest ten and then add.

13 + 78=

• 91

• 2,123

• 100

• 80

Jordan read 485 pages last month and 391 pages this month. How many pages did Jordan read altogether?

• 866 pages

• 876 pages

• 886 pages

• 877 pages

Round 6,425 - 371

• 6,054

• 5,700

• 6,000