Topic 3 Review

Multiplication Properties

100

0 x 563 = 0

What property is this?

Zero Property

200

76 x 1 = 76

What property is this?

Identity Property

300

24 x 32 = 32 x 24

What property is this?

Commutative property

400

5 x (40 x 9) = (5 x 40) x 9

What property is this?

Associative property

500

Caleb has 124 jars with 52 canned beets in each jar and Hunter has 52 jars with 124 canned beets in each jar.

What property is this?

Commutative property

Multiplying by Powers of 10

100

30 x 7 = 

210

200

20 x 50 x 7 =

7000

300

2,100 x 10³ =

2,100,000

400

Which is a possible solution

_ x _ x _ = 1,500

A  50 x 30 x 0           C 5 x 30 x 10

B 3 x 5 x 10              D 5 x 10²

The anwser is C

500

Mr. Evens has 400 bags of candy with 8 pieces in each  in them, and Mrs. Pressnell gave him 999 more bags.

How many more pieces of candy did Mrs. Pressnell give him?

Trick question! (999 x 8 =) 7992

Multiplying 2-Digit Numbers by Multiples of ten

100

21 x 30 =

630

200

45 x 30 =

1350

300

66 x 40 =

2640

400

72 x 70

5040

500

Hunter had 789 cookies Tyler had 10³ x the amount  and Caleb had 5 x the amount as Tyler. 

How many cookies does Caleb have?

5 min

3945000

Caleb got cookies galore

Multiplying 2-Digit Numbers by 2-Digit Numbers

100

12 x 26

312

200

38 x 34

1292

300

63 x 39

2457

400

72 x 45

3240

500

Mr.Evans ate 89 canned beets. The next day he ate 97 times more.

how many canned beets has Mr.Evans eat.

(Mr.Evans loves canned beets by the way so you know what he wants for Christmas)

8633

Multiplying Greater Numbers

100

55 x 185 =

10175

200

381 x 27 =

10287

300

655 x 98 =

64190

400

785 x 58 =

45530

500

Eighty-seven kids (including you) won a assorted baker's dozen of doughnuts for a award. 

How many doughnuts are there?

1044