Rounding

Round to the Nearest 10Level 1

100

Round 34 to the nearest ten.

30

4 is less than 5, so we round down

200

Round 78 to the nearest ten.

80

8 is more than 5, so we round up

300

Round 13 to the nearest ten. 

10

3 is less than 5, so we round down

400

Round 7 to the nearest ten.

10

7 is more than 5, so we round up

500

Estimate the sum by rounding each number to the nearest ten. 

34 + 75 =

110

34 rounds down to 30 & 75 rounds up to 80
30 + 80 = 110

Round to the 10Level 2

100

Round 148 to the nearest ten.

150

4 is in the tens place, we look to the right and 8 is more than 5, so we round up

200

Round 123 to the nearest ten.

120

2 is in the tens place, we look to the right and 3 is less than 5, so we round down

300

Round 194 to the nearest ten.

190

9 is in the tens place, we look to the right and 4 is less than 5, so we round down

400

Round 807 to the nearest ten.

810

0 is in the tens place, we look to the right and 7 is more than 5, so we round up

500

Estimate the sum by rounding each number to the nearest ten. 

172 + 629 + 114 = 

510

172 rounds down to 170 & 229 rounds up to 230 & 114 rounds down to 110
170 + 230 + 110 = 510

Round to the Nearest 100Level 1

100

Round 562 to the nearest hundred.

600

5 is in the hundreds place, we look to the right, 6 is more than 5, we round up

200

Round 913 to the nearest hundred.

900

9 is in the hundreds place, we look to the right, 1 is less than 5, we round down

300

Round 391 to the nearest hundred. 

400

3 is in the hundreds place, we look to the right, 9 is more than 5, we round up

400

Round 204 to the nearest hundred.

200

2 is in the hundreds place, we look to the right, 0 is less than 5, we round down

500

Estimate the sum by rounding each number to the nearest hundred. 

461 + 209 =

700

461 rounds up to 500 & 209 rounds down to 200
500 + 200 = 700

Round to the Nearest 100Level 2

100

Round 2,461 to the nearest hundred.

2,500

4 is in the hundreds place, we look to the right, 6 is more than 5, we round up

200

Round 4,830 to the nearest hundred. 

4,800

8 is in the hundreds place, we look to the right, 3 is less than 5, we round down

300

Round 6,062 to the nearest hundred.

6,100

0 is in the hundreds place, we look to the right, 6 is more than 5, we round up

400

Round 97,310 to the nearest hundred.

97,300

3 is in the hundreds place, we look to the right, 1 is less than 5, we round down

500

Estimate the sum by rounding each number to the nearest hundred.

4,602 + 7,125 =

11,700

4,602 rounds down to 4,600 & 7,125 rounds down to 7,100

4,600 + 7,100 = 11,700 

Rounding Challenge

100

Round 2,831 to the nearest thousand.  

3,000

2 is in the thousands place, we look to the right and 8 is more than 5, so we round up

200

Round 2,831 to the nearest hundred.

2,800

8 is in the hundreds place, we look to the right and 3 is less than 5, so we round down

300

Round 2,831 to the nearest ten.

2,830

3 is in the tens place, we look to the right and 0 is less than 5, so we round down

400

Round this number to the nearest ten, hundred and thousand: 57,302

ten: 57,300

hundred: 57,300

thousand: 57,000

500

Lisa is trying to figure out about how money she will need to save so she can buy two new games at the store. One game is $24 and the other is $16. Round each amount to the nearest ten to help Lisa estimate how much money she should save. 

$40

24 rounds down to 20 & 16 rounds up to 20
20 + 20 = 40