Basic Facts
1-Digit x Tens
2-Digit x Tens
Tens x Tens
Misc.
100

3x6

18

100

7x10

70

100

12x10

120

100

10x10

100

100

DOUBLE JEOPARDY: What is 27 rounded to the nearest ten?

30

200

4x7

28

200

4x20

80

200

DOUBLE JEOPARDY: 25x30

750

200

30x50

1,500

200

100-73

27

300

DOUBLE JEOPARDY: 7x7

49

300

6x30

180

300

18x20

360

300

40x60

2,400

300

What property says you can group numbers in any order and multiply to get the same answer?

Associative Property

400

8x6

48

400

8x70

560

400

26x30

780

400

50x60

3,000

400

What are numbers that are being multiplied together called?

Factors

500

9x8

72

500

80x5

400

500

31x20

620

500

70x90

6,300

500

What two operations have a commutative property?

Addition and Multiplication