2-14 Problem Solving!

Lesson List

It was 17 seconds before lift-off.  9 seconds passed.  How many seconds are left before lift-off?

seconds

Dan's Stamp Collection

 Stamp Number Astronaut 3 Rocket 3 Spaceship 5

Use the table above to answer the questions below.

How many stamps does Dan have all together?

stamps

How many more spaceship stamps than rocket stamps does Dan have?

stamps

Amy's Sticker Collection

 Cats 14 Horses 32 Unicorns 10

Use the table above to answer the questions below.

How many stickers does Amy have all together?

stickers

How many more horse stickers than unicorn stickers does Amy have?

stickers

Bill gave Joel 9 toy airplanes.

Now Joel has 14.

How many airplanes did he have before Bill gave him some?

airplanes

3 + 2 = , so 5 - 2 =

2 + 1 = , so 3 - 1 =

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