Question

a) 4,5+2×(3,6-0,16:0,1)
b)0,2×[3,4-0,13:(2,9-1,6)]
c) ( 43,5+43,5)×100-43,5×0,5​

Answer 1

a)

$4.5 + 2 \times (3.6 - 0.16 \div 0.1) \\ 4.5 + (3.6 - 1.6) \\ 4 .5 + 2 \times 2 \\ 4.5 + 4 \\ 8.5$

b)

$0.2 \times (3.4 - 0.13 \div (2.9 - 1.6)) \\ 0.2 \times (3.4 - 0.13 \div 1.3) \\ 0.2 \times (3.4 - 0.1) \\ 0.2 \times 3.3 \\ 0.66$

c)

$(43.5 + 43.5) \times 100 - 43.5 \times 0.5 \\ 87 \times 100 - 21.75 \\ 8700 - 21.75 \\ 8678.25$

Spor !

Answer 2

a)4,5+2·(3,6-1,6)=

4,5+2·2

4,5+4=8,5




b)0,2·[3,4-0,13:(2,9-1,6)]=

0,2·[3,4-0,13:1,3]

0,2·(3,4-0,1)

0,2·3,3=0,66




c) (43,5+43,5)·100-43,5·0,5=

87·100-21,75=

8700-21,75=8678,25.

Sper că te-am ajutat!

Succes!