Question

simplifique cada expressão numérica
a)9+3.2
b)8.7-18
c)8.3-20+4.2
d)100-3.24

Answer 1

a) 9+3.2
9+6
15

b) 8.7-18
54-18
36

c)8.3-20+4.2
24-20+8
4+8
12

d) 100-3.24
100-72
28

Answer 2

A)

9+3.2=

9+6=

15

B)

8.7-18=

56-18=

38

C)

8.3-20+4.2=

24-20+8=

4+8=

12

D)

100-3.24=

100-72=

28