Rounding to the Nearest 10
Rounding to the Nearest 100
Adding 3-Digit Numbers
Subtracting 3-Digit Numbers
Math vocabulary
100

What is 27 rounded to the nearest 10?

30

100

What is 245 rounded to the nearest 100?

200

100

What is 123 + 234?

357

100

What is 654-221?

433

100

What does the word SUM mean?

the total (answer) when you add two or more numbers together.  

200

Round 55 to the nearest 10.

60

200

 Round 365 to the nearest 100.

400

200

Add 456 + 123.

579

200

 Subtract 123 from 456.

333

200

What place value has two digits?

Tens

300

What is 142 rounded to the nearest 10?

140

300

What is 487 rounded to the nearest 100?  

500

300

What is 789 + 101?

890

300

What is 725-654?

71

300

What place value has 3 digits?

hundreds

400

Round 192 to the nearest 10.

190
400

Round 532 to the nearest 100.

500

400

Find the sum of 254 + 567.

821

400

What is 724-288?

436

400

What does the word DIFFERENCE mean?

The total (answer) when you subtract.

500

If you have 397, what is it when rounded to the nearest 10?

400

500

If you have 649, what is it when rounded to the nearest 100?

600

500

What is 345 + 678

1023

500

What is 800 - 375?

425

500

What form are these numbers in?

521= 500 + 20 + 1

________ form

expanded form

M
e
n
u