Rounding
Round the number 342 to the nearest hundred.
300
6 x 5
30
32 x 4
128
23 x 10
230
Abygail is making treat bags. She makes 34 bags with 4 treats in each bag. How many treats are there in all?
34 x 4 = 136
There are 136 treats in all.
Round the number 2532 to the nearest thousand.
3000
7 x 7
49
49 x 5
245
502 x 10
5,020
There are 426 passengers in each compartment of a train. If there are 5 compartments, how many passengers are on the train in all?
426 x 5 = 2,130
There are 2,130 passengers in all.
Round the number 38,456 to the nearest thousand.
38,000
6 x 8
48
124 x 6
744
21 x 20
420
Miss Lisa has 234 books in her class, Miss Crane has 253 books in her class and Miss Melanie has 268 books in her class. About how many books do the grade 5 teachers have altogether?
Rounded to the nearest ten:
230 + 250 + 270 = 750 books
Rounded to the nearest hundred:
200 + 300 + 300 = 800 books
Round the number 296,438 to the nearest ten thousand.
300,000
8 x 8
64
1,456 x 8
11,648
32 x 30
960
There are about 3,400 people in one city and about 250 more people in another city. How many people are there in both cities combined?
Other city = 3,400 + 250 = 3,650
3,400 + 3,650 = 7,050
There are about 7,050 people in both cities combined.
Round the number 399,983 to the nearest hundred.
400,000
6 x 7
42
23,708 x 7
165,956
53 x 40
2,120
Sam has 3,456 words in his story. Round this number to the nearest hundred. If Tom has 3 times as many words as Sam, about how many words does Sam have in his story?
3,456 = 3,500
3,500 x 3 = 10,500
Tom has about 10,500 words in his story.