81.(27+915):(35+332)
81.[27+915]:[35+332]
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81.[27+915]:[35+332]
=81.942:1853020188852084
=76302:1853020188852084
=4e-11
27+ 915= ?
số 1 tính nhanh A 78 x 31 78 x 24 78 x 17 22 x 72C 53 x 39 47 x 39 53 x 21 47 x 21B 35 x 34 35 x 86 65 x 75 65 x 45D 27 x 332 68 x 27 73 x 332 68 x 73E 2 x 53 x 12 4 x 6 x 37 2 x 38 x 12F 3 x25 x 8 4 x 6 x 37 2 x 38 x 12
81×(35+27)-35×(85-27)
Giúp mk nha
Mk cảm ơn
81×(35+27)-35×(85-27)
= 81×62-35×58
= 5022-2030
= 2992.
Do đằng trước là dấu nhân nên không phá ngoặc được đâu em nhé ! ;)
81 x ( 35 + 27 ) - 35 x ( 85 - 27 )
= 81 x 62 - 35 x 58
= 5022 - 2030
= 2992
tinh nhanh 27 x 35 + 17 x 81 + 27 x 14
Tính nhanh 27 x 35 + 17 x 81 + 27 x 14
27 x 35 + 17 x 81 + 27 x 14
= 27 x ( 35 + 14 ) + 17 x 81
= 27 x 49 + 17 x 81
= 1323 + 1377
= 2700
thuc hien phep tinh
73 . 35 + 27 . 19 - 20 . 73 + 81 . 27 + 85 . 73
73 . 35 + 27 . 19 - 20 . 73 + 81 . 27 + 85 . 73
= 73 . ( 35 - 20 + 85 ) + 27. ( 19 + 81 )
= 73 . 100 + 27. 100
= ( 73 + 27 ) . 100
= 100 . 100
= 10 000
73. 35+ 27.19- 20. 73+ 81. 27+ 85. 73
= 73.(35+ 85 - 20) + 27.(19+81)
=73.100 +27.100
=100.(27+73)
=100.100
=10000
Tick mìn nha
81 x (27 + 9 mũ 15) : (35 + 3 mũ 32)
27 x 332 + 68 x 27 + 73 x 332 + 68 x 73
27 x 332 + 68 x 27 + 73 x 332 + 68 x 73
= 27 x 332 + 27 x 68 + 73 x 332 + 73 x 68
= 27 x ( 332 + 68 ) + 73 x ( 332 + 68 )
= 27 x 400 + 73 x 400
= ( 27 + 73 ) x 400
= 100 x 400
= 40000
27x332+68x27+73x332+68x73
=27(68+332)+73(332+68)
=(27+73)400
=100.400=40000
27 x 332 + 68 x 27 + 73 x 332 + 68 x 73
= 27.(332+68) + 73 . (332+68)
= 27.400 + 73 . 400
=400.(27+73)
=400.100
=40000
27 x 332 + 68 x 27 + 73 x 332 + 68 x 73
\(27.332+68.27+73.332+68.73\)
\(=27.\left(332+68\right)+73.\left(332+68\right)\)
\(=27.400+73.400\)
\(=\left(27+73\right).400\)
\(=400.100\)
\(=40000\)
27 x 332 + 68 x 27 + 73 x 332 + 68 x 73
= (27+73) x 332 + 68 x (27+73)
= 100 x 332 + 68 x 100
= 100 x (332 + 68)
= 100 x 400
= 40000
27 x 332 + 68 x 27 + 73 x 332 + 68 x 73
=(27+73+332+68)x2
=500x2
=1000