Doubles Facts
Place Value
3-digit addition
Rounding
2-digit addition
100

24 + 24

48

100

How many tens are in the number 7382?

8

100

234 + 123 + 40

397

100

Round to the nearest 10. 

234

230

100

54 + 52 

106

200

104 + 103 

107


200

How much does the hundreds place represent? 482 

NOT how many hundreds, how MUCH it represents 

400

200

372 + 221 + 25

618

200

Round to the nearest 100. 

535

500

200

34 + 53

87

300

If 120 + 120 = 240

then 120 + 121 =

241

300

Jane said that in the number 120, there is 12 tens. Is she correct?

Yes - 12 tens is equivalent to 120

300

124 + 145 + 100 =

369

300

Round to the nearest 10.

769 

770

300

143 + 534 

677

400

If 536 + 536 = 1072

then 536 + 537 =

1073

400

Bob said that 165 has 16 tens and 5 ones. What is another way he can represent this?

1 hundred, 6 tens, and 5 ones

400

262 + 124 + 203

589

400

Round to the nearest 100.

990


1000

400

565+ 235

80

500

1025 + 1025 =

1050

500

If you add 160 + 325, what would be in the tens place?

8

500

1053 + 202 + 12

1267

500

Round to the nearest 100.

3924

3900

500

1267 + 342

1609