Unit 3 Math Review

Addition

100

823+135

958

200

315+478

763

300

468+279

747

400

562+499

1061

500

999+999

1998

Addition #2

100

Billy bought 617 marbles. Holly bought 242. How many do they have altogether?

859

200

Sarah has 358 books in her library. She buys 169 more books. How many books does she have now?

527

300

Austin makes 235 cookies for a bake sale. If he makes 426 more, he would have 651. True or False?

False

400

Molly has 285 toy cars in her collection. If her grandma gave her 675 more, she would have 960. True or False?

True

500

Sammy has 534 books. She buys 124 more. Then her mom gives her another 342. How many does she have altogether?

1000

Subtraction

100

378-142

236

200

568-274

294

300

932-775

157

400

500-333

167

500

1000-684

316

Subtraction #2

100

Christy has 683 ceramic vases. Her dog broke 249 of them. How many aren't broken?

434

200

Hannah made 375 cookies. Her brother came and stole 197 of them. How many does she have left?

178

300

Eric made 956 cupcakes. If his brother eats 274 of them, he'll have 682 left. True or False?

True

400

Stacy made 722 paintings. If she sells 584 of them, she would have 262. True or False?

False

500

Greg has 834 monster trucks. He gives his friend 357 of them. Then he gives his other friend 289 trucks. How many trucks does he have left?

188

Surprise!

100

Round 784 to the nearest ten.

780

200

Round 978 to the nearest hundred.

1000

300

Round 5 to the nearest hundred.

0

400

Which expression is the same as 7x(9+1)?

A. 7x9+1

B. (7x9)+(7x1)

C. 7+9+1

D. 7x9x1

B. (7x9)+(7x1)

500

Which expression is the same as 3x(8+5)?

A.(3x8)+5

B. 3x8x5

C. (3x8)+(3x5)

D. 3+8x5

C. (3x8)+(3x5)