Cálculo mental con decimales y fracciones

3.5 + 0.5 =

• 4.0

• 3.0

• 30.55

2.5 + 4.5 =

• 6.10

• 6.0

• 7.0

10.5 + 2.5 =

• 102.10

• 13.0

• 12

8.5 + 1.5 =

• 81.55

• 9.0

• 10.0

4.5 + 3.5 =

• 8.0

• 9.0

• 7.10

2/4 + 5/4

• 4/7

• 7/8

• 7/4

6/10 + 3/10 =

• 10/9

• 63/10

• 9/10

9/6 + 4/6 =

• 6/13

• 13/6

• 13/12

2/4 + 1/4 =

• 4/3

• 4/4

• 3/4

3/5 + 2/5 =

• 1 entero

• 5/5

• Las dos anteriores.