ADDING
SUBTRACTING
WORD PROBLEMS/challenge
ESTIMATE/ROUNDING
BONUS
100

254 + 365 

619

100

565,541-425,427 

140,114 

100

A baseball team has an attendance of 42,419 on Friday and 44,716 on Saturday. What is the total attendance for the two days? 

87,135 

100

Round 487, 564 to the nearest thousand 

488,000

100

5 X 2 

10

200

2,565 + 7,890 

10,455

200

775,075-393,904 

381,171

200

There are 961,939 people in city A and 739,795 people in City b. How many more people are in city a than in city b? 

222,144 

200

round 356,789 to the nearest hundred thousand 

400,000

200

4 X 8 

32

300

45, 235 + 48, 945

94,180

300

229,113-208,507

20,606

300

You have 3,626 songs in your music library. You download 4,744 more songs. Then you delete 312 songs. How many songs do you have now? 

8,058

300

round 14, 568 to the nearest ten thousand 

10,000

300

8 X 8 

64

400

1,325 + 2,435 

3760 

400

19,432-12,130

7,302

400

1,000 x 5 

5,000

400
round 8,928,345 to the nearest thousand 
8,928,000
400

10 X 12 

120

500

229, 113 + 243,568 

472, 681

500

520,452- 40,320 

480,132

500

5,000 x 10

50,000

500

What are the steps to rounding? 

1) underline the given digit you are rounding to

2) Look to your right 

3) 0-4- stay and 5-up - round up 

4) rest becomes zero 

500

12 X 11= 

132

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