\(\frac{36}{47}-\frac{92}{29}-\frac{36}{47}+\frac{90}{29}\)
\(=\left(\frac{36}{47}-\frac{36}{47}\right)+\left(\frac{-92}{29}+\frac{90}{29}\right)\)
\(=0+\frac{-2}{29}\)
\(=\frac{-2}{29}\)
\(\frac{36}{47}-\frac{92}{29}-\frac{36}{47}+\frac{90}{29}\)
\(=\left(\frac{36}{47}-\frac{36}{47}\right)+\left(\frac{-92}{29}+\frac{90}{29}\right)\)
\(=0+\frac{-2}{29}\)
\(=\frac{-2}{29}\)
tính nhanh
92 + 71 + 108 , 32 x 47 + 53 x 47 + 47 x 15
90 x 143 - 43 x 90 , ( 1200 + 60 ) : 12
2 x 18 x 24 + 3 x 50 x 16 + 12 x 32 x 4
34 x 81 + 34 x 19 + 66 x 35 + 47 x 66
48 x 29 + 48 x 71 - ( 12 x 45 + 12 x 55 )
tính hợp lí
a)29.(85-47)+85.(47-29)
b)47.(23+50)-23.(47+50)
tính hợp lí
a) 31/47 .14/29 +31/47 .15/29 + 16/47
Tính hợp lí: -29(85-47)-85(47-29)
Tính hợp lí:
a. -29.(85-47)-85.(47-29)
b. 37.(29-23)-29.(37-23)
c. 5.2004-1002.(-10)+40.501
B1/ Tính nhanh :
a/ -29.(85-47)-85.(47-29)
b/ -15 . (23-29)+23.(15-29)
c/ 13. (55-29)+23.(15-29)
giải giúp mik nha
(-29).(85-47)-85.(47-29)
29( 85 - 47 ) + 85( 47 - 29 )
(-29).(85-47)-85.(47-29)