Question

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SI


5 STELEEE SI MA ABONEZ ‼️‼️‼️‼️‼️‼️


VA ROGGGGGG ‼️‼️‼️‼️​

Answer 1

Explicație pas cu pas:

1)

a)39+13=52

52:2=26

b)72,81+102=172,81

172,81:2=86,405

c)234+510+133+11=744+144=888

888:4=222

2)

a)65×2=130

130-59=71

b)86×3= 258

258-(101+71)=

258-172=

86

c)186÷3=62(b)

62-1=61(a)

62+1=63(c)

d)11+14+10+11+8+12=25+21+20=

46+20=66

66÷6=11

Mult noroc pe viitor!

Dummy73

Answer 2

Explicație pas cu pas:

1.

$m_{a} = \frac{39 + 13}{2} = \frac{52}{2} = 26$

$m_{a} = \frac{72 + 81 + 102}{3} = \frac{255}{3} = 85$

$m_{a} = \frac{234 + 510 + 133 + 11}{4} = \frac{888}{4} = 222$