CALCULO MENTAL CUARTO GRADO

A

1

1600 +300

1900

1

1100 + 500

1600

1

1800 + 200

2000

1

1700 + 200

1900

1

1300 + 400

1700

B

1

100 - 36

64

1

100 - 24 

76

1

100 - 43

57

1

100 - 62

38

1

100 - 57

43

C

1

20 X 5

100

1

30 X 3

90

1

50 X 4

200

1

40 X 4

160

1

30 X 5

150

D

1

500 ÷ 10

50

1

600 ÷ 10

60

1

450 ÷ 10

45

1

550 ÷ 10

55

1

700 ÷ 10

70

E

1

3.1 + 0.8

3.9

1

4.2 + 0.3

4.5

1

2.3 + 0.6

2.9

1

5.8 + 0.1

5.9

1

6.3 + 0.4

6.7