Equations
Addition
Subtraction
Multiplication
Mental Math
100

4 x 7 = N x 2

14

100

447+265=

712

100

253-164=

89

100

64x45=

2,880

100

46+54

100

200

W - 2 = 4 x 6

36

200

855+253+24=

1132

200

63-64=

-1

200

123x13=

1,599

200

250+156=

406

300

13m = 3(-3+4m)-5

-14

300

44(6)+9--2=

275

300

6(42)-3

249

300

134x125=

16,750

300

399+498=

897

400

6-k=5-k-2

4          

2

400

-44+-72=

-116

400

86-405=

-319

400

6x=78

13

400

467+ x = 510

43

500

-3x-4(4x-8)=3(-8x-1)

-7

500

-5+-6--8(6)=

37

500

54678-65472=

-10,794

500

2546 x 3842=

9,781,732

500

389+ x = 456

67

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