Arme e efetue as multiplicações: (-3,85) . (+2,4)= (+1,4) . (0,5)= (-2,5) . 30= (-0,3) . (-0,01)= -40 .
Arme e efetue as multiplicações: (-3,85) . (+2,4)= (+1,4) . (0,5)= (-2,5) . 30= (-0,3) . (-0,01)= -40 . 0,025= 1,4 . 3,25= 5,90 . 2,7= 3,24 . 5= 24,43 . 1,622= 5,834. 23=
1 Resposta
1 -
a) 7956 : 6
-6 1326
19
- 18
15
- 12
36
-36
00
b) 4629 : 3
-3 1543
16
-15
12
- 12
09
-9
0
c) 32'64 : 4
-32 816
006
-4
24
-24
00
d) 10476
+9876
20352
e) 8293
-5296
2997
f) 4381
-2474
1907
g) 1509
x7
10.563
h) 47
x25
1175
2 -
a) 24
x32
768
b) 8765 : 5
-5 1753
37
-35
26
-25
15
-15
00
c) 415
x53
21995
d) 7294 : 3
-6 2431
12
-12
009
-9
04
-3
1
e) 37
x26
962
f) 3294 : 2
-2 1647
12
-12
009
-8
14
-14
00
g) 25
x16
400
h) 7296 : 6
-6 1216
12
-12
009
-6
36
-36
00
i) 43
x27
1161
j) 8456 : 4
-8 2114
04
-4
05
-4
16
-16
00
3 -
a) 424 : 45
405 9,422..
0190
-180
100
90
100
90
10
b) 528 : 2
-4 264
12
-12
008
-8
0
c) 550 : 5
-5 110
05
-5
00
d) 732 : 6
-6 122
13
-12
012
-12
00
e) 690 : 3
-6 230
09
-9
00
f) 456 : 4
-4 114
05
-04
16
-16
00
g)
h) 912 : 8
-8 114
11
-8
32
-32
00
i)
j) 528 : 4
-4 132
12
-12
008
-8
0
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