© 2010 MOE CPDD

Addition Stories 2

Adding two 3-digit numbers without renaming

© 2010 MOE CPDD

Story Problem 1There are 262 boys and 324 girls in a school.How many children are there?

Number of girls

Number of boys

© 2010 MOE CPDD

Hundreds OnesTens

•How many ones are there altogether?•How many tens are there altogether?•How many hundreds are there altogether?

5 8 6

© 2010 MOE CPDD

There are 262 boys and 324 girls in a school.How many children are there?

Story Problem 2

262 + 324 =

There are children.

H T O

2 6 2

+ 3 2 4

685

586

© 2010 MOE CPDD

Story Problem 3Jane has 630 stamps.Her friend gives her 313 more.How many stamps does she have now?

630 + 313 =

She has stamps now.

H T O

6 3 0

+ 3 1 3

349

943

© 2010 MOE CPDD

Story Problem 4Jane has 650 stamps.Her friend gives her 243 more.How many stamps does she have now?

550 + 243 =

She has stamps now.

H T O

5 5 0

+ 2 4 3

397793

© 2010 MOE CPDD

Spot the mistake!Are the answers correct?If they are wrong, what should the correct answer be?

1) 543 + 242 = 735

2) 333 + 264 = 597

3) 560 + 318 = 870

4) 175 + 714 = 889