what we learned this week

ADDITION

100

8+3

11

200

9+6

15

300

15+10

25

400

25+25

50

500

20+83

103

SUBTRACTION

100

7-2

5

200

11-3

8

300

25-10

15

400

75-16

59

500

520-115

405

MULTIPLICATION

100

5x2

10

200

7x5

36

300

9x11

99

400

55x5

275

500

96x8

768

RATIOS

100

1:3 (in one of the two other forms)

1/3 or 1 to 3

200

2/5 (in one of the two other forms)

2:5 or 2 to 5

300

9 to 15 (in one of the two other forms)

9/15 or 9:15

400

36:2 (in one of the two other forms)

36 to 2 or 36/2

500

4/8 is also equal to? 

1/2

PROPORTIONS

100

1       2 

__ = __

6       x

x=12

200

2       6 

__ = __

3       x

x=9

300

2       5 

__ = __

4       x

x=10

400

4       x 

__ = __

5       15

x=12

500

5       20 

__ = __

6       x

x=24