Show:
adding
rounding
subtraction
fraction
multupling
100

333+142

333

+

142

--------

475

100

round by 500

A.500

B.600

C.700

A.500

100

subtract 80-30

50

100

show a whole fraction

A.1/4

B.3/4

c.7/4

1/4

100

2x4=

8

200

555+324

555

+

324

-------

879

200

round to 200

A.100

B.200

C.300

C.300

200

subtract 40-27=

13

200

show a half-fraction

A.6/3

B.1/1

C.7/6

A.3/6

200

3x6=

18

300

990,148+321,123=

990,148

+

321,123

-----------

1,311,271

300

found by 400

A.400

B.500

C.300

B.500

300

subtract 10,124- 983=

9141

300

A whole fraction


A.1/7

B.7/7

C.4/2

B.7/7

300

10x10=

100

400

999,999=

1998

400

round to 900,000

A.1,000,000

B.900,000

C.800,000

A.1,000,000

400

9,870-972

8,788

400

4/3

A.4/3

B.

4/3

400

10x90=

900

500

989,180

1169

500

round to 1,000,000

A.2,000,000

B.10

C.1,000,000

C.1,000,000

500

    9,827

- 10,936

-----------

A.12,667

B.89.927

c.0991

C.0991

0991

500

50x5=

250