Addition
Subtraction
Mixed Bag
100

What is the estimate for 71,078 + 18,805 when each number is rounded to the nearest ten thousand?

a) 75,000 

b) 90,000

c) 80,000

d) 50,000

b) 90,000


100
20,000 -672 =

19,328

100

68,277 people visited a museum on Saturday. 8,649 fewer people visited the museum on Sunday than on Saturday. How many visited the museum on Sunday?

59,628 people

200

40,891 + 8,510 

49,401

200

77,000 -7,009

69,991

200

Complete the number patterns


8, 16, 24, 32, __, __, __, __

40, 48, 56, 64

300

What number is equal to 38,752 + 51,335

a) 110,988 

b) 10,352

c) 90,088 

d) 80,808 

c) 90,088

300

65,300-49

65,251

300

There were 12,000 people at a baseball game on Friday. 5,500 of them were men. There were 100 more women than men at the game and the rest were children. How many children were at the game? 

900 children

400

899 + 798 + 697 + 596 

2,990

400

Cody had $3,582. He bought a guitar and has $3,356 left. How much did the guitar cost? 

$226

400

Laila bought a scooter for $1,250. She also bought a helmet that cost $1,125 less than the scooter. How much did she pay for the scooter and the helmet altogether? 

$1,375

500

8,470 + _____ = 10,000

a) 1,530

b) 2,630

c) 1,630

d) 18,470

a) 1, 530

500

438,650 - ____ = 71,576

367,074

500

Which of the following numbers are common multiples of 6 and 9?

9, 18, 36, 45, 54, 108

18, 36, 54, and 108