Question

Alguém me ajuda pfv responder

Answer 1

Explicação passo-a-passo:

2) a) 0,02 + 3,10

$0.02$

$+ 3.1$

_________

$3.12$

b) 4,54+2,15

$4.54$

$+ 2.15$

_________

$6.69$

c) 3,001+0,143

$3.001$

$+ 0.143$

___________

$3.144$

d) 4,1+0,2

$4.1$

$+ 0.2$

__________

$4.3$

e) 752+0,01

$752 \\ + 0.01$

__________

$752.01$

(coloca o o primeiro 0 do 0,01 embaixo do 2 no cálculo)

f) 49,7-132

$82.3$

g) 4,35-3,85

$4.35 \\ - 3.85$

___________

$0.5$

h) 2,135-1,78

$2.135 \\ - 1.780$

__________

$0.355$

i) 8,01×0,5

$8.01 \\ \times 0.5$

___________

$4.005$

j) 0,03×0,01

$0.03 \\ \times 0.01$

__________

$0.0003$

3) a) 12/44

$\frac{12 \div 4}{44 \div 4}$

$\frac{3}{11}$

$0.27$

b) 7/4

$1.75$

c) 51/90

$\frac{51 \div 3}{90 \div 3}$

$\frac{17}{30}$

$0.56$

d) 8/9

$0.88(...)9$

e) 128/990

$\frac{128 \div 2}{990 \div 2}$

$\frac{64}{495}$

$0.129$