2 by 2
division
rounding
faction
adding and subtracting
100

10 x 30

300

100

8/15

1r7

100

369 round to the nearest ten

370

100

3/5 + 1/5

4/5

100

246 + 569

815

200

25 x 40

1,000

200

23/7

30r2

200

589 round to the nearest hundred 

600

200

6/9 -3/9

3/9

200

986 - 468

518

300

35 x 23

805

300

24/27

1r3

300

789 round to the nearest hundred

800

300

4/8 +4/8 

1

300

2,892 - 1,653

1,239

400

79 x 86

6,794

400

109/8

13r4

400

1,987 round to the nearest hundred

2,000

400

6/16 + 8/16 simplify 

7/8

400

5,913 + 9,810

15,723

500

93 x 84

7,812

500

274/9

30r4

500

4,456 round to the nearest thousand 

4,000

500

9/14 + 6/14 simplify it

1r1

500

36,890 - 21,234

15,656