+,- numbers
3rd grade Problem Solving
multiples
Rounding
100

243-116=

127

100

Matt has 2 red crayons and 3 purple crayons.  Then he buys 5 more crayons.  How many crayons does Matt have now?

10 Crayons

100

What are the next two multiples?

2,4,6,___,____

8,10

100

Round 147 to the nearest ten.

150

200

15+22+19+27=

83

200

Dalton has a ribbon that is 72inches long.  He cuts off 32 inches.  How long is the ribbon now?

40 inches

200

What are the next two multiples?

3, 6, 9, 12, ____, _____

15,18

200

Round 324 to the nearest ten.

320

300

151+167=

318

300

Jess has two scarves.  The red scarf is 42 inches long. the Yellow scarf is 36 inches long.  How much longer is the red scarf than the yellow scarf?

6 inches longer

300

What are the next two multiples?

4,8,12,16, ____, _____

20, 24

300

Round 1161 to the nearest hundred

1200

400

134-72=

62

400

Sam gave his mom a bouquet with 12 flowers in it.  2 were red, 5 were yellow, and some were purple.  What fraction of the flowers were purple.

5/12 were purple

400

Use multiples to find 8 x 3

8, 16, 24

400

Round 371 to the nearest 10.

370

500

543-251=

292

500

Jenna is on a path that is 60 meters long.  She walks the first 20 meters.  Then she starts skipping.  She walks again for the last 15 meters.  How far does Jenna skip?

How far did she walk altogether?

How far did she skip?

25 meters

500

What does 6 x 6 equal?


6,12,18, ____, _____, ____ 

36

500

Round 675 to the nearest ten

680