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Addition
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Round
100

Mental Math 

4 - 6 + 5 

+3


100

MENTAL MATH

10.2 - 6.5

3.7

100

MENTAL MATH 

3,659 + 567 + 345 + 12

4,583

100

MENTAL MATH 

12 x -9

-108

100

MENTAL MATH 

45/9=

5

100

Round to the nearest 10

47.2

50

200

Mental Math

-9 x -9

81


200

MENTAL MATH

18.52 - 18.32


0.2

200

MENTAL MATH 

563-246+1010=

1327

200

MENTAL MATH 

1x10000 / (500)

20

200

MENTAL MATH

8/2

4

200

Round to the nearest hundreth

789.234

789.23

300

Mental Math

-4 x 5 x -3

60

300

MENTAL MATH

632.34 - 432.16

200.18

300

MENTAL MATH 

2367+5658 - 23456=

-15431

300

MENTAL MATH 

15 x 3 x -6


-270

300

MENTAL MATH 

18/2

9

300

Round to the nearest tens

243.567

240

400

Mental Math 

(-4+5)x(5x2)

10

400

MENTAL MATH

9090.90 - 2020.13

7070.77

400

MENTAL MATH 

9945-7246 + 1234=

3933

400

MENTAL MATH 

25x587x4x4x5x5 / 10000

587

400

MENTAL MATH 

100/10

10

400

Round to 1 decimal place

12345.678

12345.7
500

Mental Math 

2000 x (200-(200-1))

2000

500

MENTAL MATH

b + 567.89 = 876.43

308.54

500

MENTAL MATH 

8,435 + 577 - (435x5x25x4x0.25)

63387

500

Mental Math

125 x 657 x 4 x 2 x 5 x 2

6570000

500

MENTAL MATH

28/4

7

500

Round to second decimal place

45,123 / 1000

45.12