Rounding
Estimation
Addition
Subtraction
Problem Solving
100
Round 372 to the nearest tens
370
100
Estimate 473+465
1,000
100
359+723=
1,082
100
415-323=
92
100
Draw a pictures and write an equation to solve. Doug saw 5 Agile wallabies and 9 Rock wallabies at the zoo. How many wallabies did Doug see?
14 wallabies.
200
Round 961 to the nearest tens
960
200
Estimate 586-483
100
200
215+8,823=
9,038
200
4,978-2,766=
2,212
200
Sandy earned $36 from babysitting and $15 for doing her chores. Write an equation and find the total amount that Sandy earned.
$36+$15=$51
300
Round 1,826 to the nearest thousands
2,000
300
Ron and Amanda collected 497 buttons, but they used 177 of them while fixing some jackets. ABOUT how many buttons do they have now?
300 buttons
300
14,382+9,243=
23,625
300
400-256=
144
300
Draw a picture and write an equation to solve. Luz had collected 393 tokens from the games at Funland. To win a large stuffed animal, 500 tokens were needed. How many more tokens does Luz need to win the large stuffed animal?
307
400
Round 1,089 to the nearest tens
1,090
400
Over the course of the summer, campers used 6,090 beads from the craft shack. There were an additional 5,358 that were not used. About how many beads were there originally?
11,000
400
In 1972, the Apollo 16 lunar rover set the current lunar speed record at 11 miles per hour. In order to bread free from Earth's orbit, Apollo missions had to go 24,989 miles per hour faster that the record speed of the lunar rover. How fast did the Apollo rockets travel?
25,000 miles per hour
400
Shawn scored 10,830 points playing a video game. Miguel scored 9,645 points. How many more points did Shawn score than Miguel?
1,185 more points
400
The American Kennel Club recognizes 17 breeds of herding dogs and 26 breeds of terriers. Draw a picture that could help find the total number of herding dogs and terriers.
17+26= total number of dogs
500
Round 952 to the nearest hundreds
1,000
500
A carnival makes most of its money from the ring toss game and the bumper cars. Last year, it pulled in $6,262 from the ring toss game and $4,872 from the bumper cars. In all, about how much did those two games make?
11,000 dollars
500
There were 10,453 items checked out of the public library one week. The next week, 12,975 items were checked out. A week later, 9,634 items were checked out. How many items were checked out in three weeks?
33,062 items
500
On Thursday, 10,296 people attended a college basketball game. The following wee, 12,000 people attended an away game. How many more people attended the away game than the home game?
1,704 people
500
A parking lot had a total of 243 cars in one day. By 6:00AM there were 67 cars in the lot. In the next hour 13 more cars joined these. How many more cars would come to the lot by the end of the day?
163 more cars