Math Q7

Estimating

100

8/9 x 10/11

1x1= 1

200

1/5 x 11

1/5x10= 2

300

4_11/12 x 3_1/10

5x3= 15

400

3/6 x 17

3/6x3= 9

500

10/12 x 35

10/12x36= 30

600

6/8 x 33

6/8x32= 24

Regular Multiplication

100

2/3 x 1/4

2/12= 1/6

200

3/4 x 2/3

6/12= 1/2

300

8/10 x 2/7

16/70= 8/35

400

4/7 x 7/8

28/56= 1/2

500

4/5 x 6

24/5= 4_4/5

600

5/6 x 15

75/6= 12_3/6= 12_1/2

Regular Multiplication Mixed Numbers

100

1/2 x 2_3/8

1_3/16

200

1_1/2 x 2/3

6/6= 1

300

1_7/8 x 4/5

1_1/2

400

3_3/4 x 2_4/5

10_1/2

500

3_1/3 x 1_1/5

45/15= 3/1 or 3

600

6_2/3 x 3_3/10

22/1 or 22

Final Jeopardy

600

Regular Multiply: 1_1/2 x 2/3 x 3/5

18/30= 3/5