Question

A)81,5-23,78;
B)256,43-173,285;
C)81,735-10,3-20,95;
D)8,576-2,53-4,5.

Answer 1

A )

81, 5 - 23, 78 = 57, 72

B )

256, 43 - 173, 285 = 83, 145

C )

81, 735 - 10, 3 - 20, 95 =

71, 435 - 20, 95 = 50, 485

D )

8, 576 - 2, 53 - 4, 5 =

6, 046 - 4, 5 = 1, 546

Answer 2

a)81,5-23,78=81,5+(-23,78)=57,72

b)256,43-173,285=256,43+(-173,285)=83,145

c)81,735-10,3-20,95=50,485

1)81,735-10,3=81,735+(-10,3)=71,435

2)71,435-20,5=71,435+(-20,5)=50,485

d)8,576-2,53-4,5=1,546

1)8,576-2,53=8,576+(-2,53)=6,046

2)6,046-4,5=6,046+(-4,5)=1,546