Chapter 4 and 5 (multiplication)

Multiples of 10, 100, and 1,000

100

6 x 800

4,800

200

3 x 9,000

27,000

300

5 x 80

400

400

6 x 11,000

66,000

500

2 x 500 x 1,000

1,000,000

Estimate (Round to greatest place value)

100

892 x 6

900 x 6 = 5,400

200

4,204 x 9

4,000 x 9 = 36,000

300

47 x 7 

50 x 7 = 350

400

27,931 x 4

30,000 x 4 = 120,000

500

99,004 x 10

100,000 x 10 = 1,000,000

Distributive Property(Show how you decomposed the problem)

100

63 x 4

(60 x 4) + (3 x 4) = 252

200

32 x 7

(30 x 7) + (2 x 7) = 224

300

52 x 11

(52 x 10) + (52 x 1) = 572

or

(50 x 10) + (50 x 1) = 550

(2 x 10) + (2 x 1) = 22

550 + 22 = 572

400

46 x 22

(46 x 20) + (46 x 2) = 1,012

or

(40 x 20) + (40 x 2) = 880

(6 x 20) + (6 x 2) = 132

880 + 132 = 1,012

500

39 x 18

(39 x 10) + (39 x 8) = 702

Or

30 x 10 + 30 x 8 = 540

9 x 10 + 9 x 8 = 162

540 + 162 = 702

Multiply

100

26 x 7 =

182

200

127 x 4 =

508

300

28 x 17 = 

476

400

91 x 78 = 

7,098

500

1,259 x 81

101,979

Word Problems

100

How many toy cars could Toby get with 35 points?

Can't answer because we don't know how much 1 toy car is

300

A greyhound dog can jump a distance of 27 feet. How many feet will a greyhound travel if it jumps 12 times?

324 feet

500

A small bunny weighs 17 pounds. A large bunny weighs 37 pounds. If there are 6 small bunnies and 5 large bunnies, how much do all the large bunnies weigh?

185 pounds