Addition
36 + 42
78
300 - 290
10
Round to the nearest thousands place
5,803
6,000
82 x 10 =
820
2 m =___cm
200 cm
2,490 + 1,293
3,783
2,304 - 1,097
1,207
Round to the nearest hundreds place.
2,350
2,400
97,297 x 10
972,970
4 kg = ____ g
4,000 g
480,937 + 2,983
483,920
48,952 - 3,975
44,977
Jim bought a train sweatshirt for $17.99, a train pencil for $2.99 and a train notebook for $5.99
Round each number to the nearest dollar to tell about how much money Jim spent.
~ $27
Jeff collected toy trains, because why not? He had 283 toy trains. His friend Sheldon had 10 times as many toy trains as Jeff. How many toy trains does Sheldon have?
2,830 toy trains
25 kg = ____ g
25,000 g
Two trains leave the station at 6:00pm. Another train is late leaving the station at 7:35pm. Each train had 1 apple aboard. How many apples were on all the trains?
3 apples
The train cost $1,500,000 but there was a sale for $300,000 off! How much money did the train cost?
$1,200,000
WHAT IS THE POINT OF ROUNDING?
To make numbers easier and quicker to add.
OR
To check the reasonableness of your exact answer.
7,000 70,000
The second number is __ times as many as the first number
10 times as many
328 m = _____ cm
32,800 cm
A train is leaving the station with 4,293 pounds of potatoes on Tuesday. On Wednesday the train left with 2,356 more pounds potatoes. How many pounds of potatoes did the train have on Tuesday and Wednesday.
6,649 pounds of potatoes
Jennifer rode the train 5,849 times in January. In February, she rode the train 1,263 less times than in January. What was the total number times she rode the train in February?
BONUS POINTS: How many times did she ride the train in both months?
4,586 in February
Bonus: 10,435 in both months
There were 3,843 seat on the first train and 2,342 seats on the second train. Round to the nearest thousands place to tell about how many seats were on both trains.
Henry painted a picture with two trains and 239 trees in the background. He didn't like the painting because he thought it needed more trees. So, he repainted it with ten times as many trees as the first painting. How many trees were in the second painting?
BONUS POINTS: How many trains were in the second painting
2,390 trees
BONUS: 2 trains
73 m 15 cm = ______ cm
7,315 cm