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\(4.5^5-32:2^4\)
\(=4.5^5-2^5:2^4\)
\(=4.5^5-2^1\)
\(=4.3125-2\)
\(=12500-2\)
\(=12498\)
học tốt
4.55-32:24= 4. 5 . 54-25 : 24
= 20 . 54 -2= 20. 625-2=12500-2=12498
\(c=2^3.5^3-\left\{7^2.2^3-5^2.\left[4^3::8+11^2:121-2\left(37-5.7\right)\right]\right\}\)
\(c=8.5-\left\{49.8-25.\left[8:8+121:121-2\left(37-5.7\right)\right]\right\}\)
\(c=8.5-\left\{49.8-25.\left[8:8+121:121-2\left(37-35\right)\right]\right\}\)
\(c=8.5-\left\{49.8-25.\left[8:8+121:121+2.2\right]\right\}\)
\(c=8.5-\left\{1+1+2.2\right\}\)
\(c=8.5-\left\{1+1+4\right\}\)
\(c=8.5-6\)
\(c=40-6\)
\(c=34\)
nhầm
\(c=2^3.5^3-\left\{7^2.2^3-5^2.\left[4^3:8+11^2:121-2\left(37-5.7\right)\right]\right\}\)
\(c=8.125-\left\{49.8-25.\left[8:8+121:121-2\left(37-35\right)\right]\right\}\)
\(c=8.125-\left\{49.8-25.\left[8:8+121:121-2.2\right]\right\}\)
\(c=8.125-\left\{49.8-25.\left[1+1-2.2\right]\right\}\)
\(c=8.125-\left\{49.8-25.\left[1+1-4\right]\right\}\)
\(c=8.125-\left\{49.8-25.-2\right\}\)
\(c=8.125-\left\{392+50\right\}\)
\(c=8.125-442\)
\(c=1000-442\)
\(c=558\)
a)27*77+24*27-27=27*(77+24-1)=27*100=2700
b)(-12)+(-9)+121+|-20|=-21+121+20=100+20=120
c)25*101-25*1010=25*101-25*1=25*(101-1)=32*100=3200
2700
120
3200