kazah
megoldása
2 éve
1,
a,
900 m + 2,3 km = `color(red)(32000)` dm
b,
`color(red)(120)` dl - 36 dl = 8,4 l
c,
230 g + 17 dkg = `color(red)("0,4")` kg
d,
2 `m^2` + 2 `dm^2` + 2 `cm^2` = `color(red)("2 020 200")` `mm^2`
e,
13 `dm^3` - 4200 `cm^3` = `color(red)("0,0088")` `m^3`
f,
336 óra + `color(red)("4")` nap = 18 nap
6,
a, 9-(13-17)+5 = 9-(-4)+5 = 9+4+5 = 17
b, -4+(-11)+5-(-16+10) = -4-11+5-(-6) = -4-11+5+6 = -4
c, -6:2-3*9 = -3-27 = -30
d, `7+(-2)*8-3` = 7+(-16)-3 = 7-16-3 = -12
e, `4-[(-14):7]*3` = `4-[-2]*3` = 4-(-6) = 4+6 = 10
6,
a, `3^2*3` = `3^(2+1)` = `3*3` = 27
b, `(1/2)^3*(1/2)^2` = `(1/2)^(3+2)` = `(1/2)^5` = `1/32`
c, `(5^2)^2` = `5^4` = 3125
d, `(-2)^4*(-2)^3` = `(-2)^(4+3)` = `(-2)^7` = -128
e, `16^3/4^3` = `(16/4)^3` = `4^3` = 64
f, `5^6*2^6` = `(10)^6` = 1 000 000
7,
a, `2^5*6^5` = `(2*6)^5` = `12^5`; `ul((12^2)^3=12^6)`
b, `ul((3*3)^6)`
c, `ul(154^4)`
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