Tính nhanh :
12 x 85 + 35 x 182 - 35 x 94
Tính nhanh:
e.12 x 35 + 35 x 182 - 35 x 94
n.19 x 27 + 47 x 81 + 19 x 20
785-954 = ... cảm ơn
e , 12 x 35 + 35 x 182 - 35 x 94
= 35 x ( 12 + 182 - 94 )
= 35 x 100
= 3500.
n , 19 x 27 + 47 x 81 + 19 x 20
= 19 x 27 + 19 x 20 + 47 x 81
= 19 x ( 27 + 20 ) + 47 x 81
= 19 x 47 + 47 x 81
= 47 x ( 19 + 81 )
= 47 x 100
= 4700.
T I C K cho mik nha !
~ HT ~
12 x 35 + 35 x 182 - 35 x 94
=35*[12+182-94]
=35*100
=3500
Tính nhanh
A) 37 x 46 + 37 x 51 + 111
B) 35 x 215 - 35 x 210 - 175
E) 76 x 102 - 76 x 2
C) 85 x 94 + 85 x 2 + 170 x 2
48 x 56 + 28 x 104
G) 206 x 12 - 206 - 206
`@` `\text {Ans}`
`\downarrow`
`A)`
`37 \times 46+37 \times 51+111`
`= 37 \times (46+51)+111`
`= 37 \times 97+111`
`= 3589 +111`
`= 3700`
`B)`
`35 \times 215-35 \times 210-175`
`= 35 \times (215-210)-175`
`= 35 \times 5-175`
`= 175-175=0`
`E)`
`76 \times 102-76 \times 2`
`= 76 \times (102-2)`
`= 76 \times 100`
`= 7600`
`C)`
`85 \times 94+85 \times 2 +170 \times 2`
`= 85 \times (94+2) + 170 \times 2`
`= 85 \times 96+170 \times 2`
`= 8160+340`
`= 8500`
`48 \times 56+28 \times 104`
`= 48 \times 28 \times 2+28 \times 104`
`= 28 \times (48 \times 2+104)`
`= 28 \times (96+104)`
`= 28 \times 200`
`= 5600`
`G)`
`206 \times 12-206-206`
`= 206 \times (12-1-1)`
`= 206 \times 10`
`= 2060`
a) 37 x 46 + 37 x 51 + 111
= 37 x ( 46 + 51 ) + 111
= 37 x 97 + 111
= 3589 + 111
= 3700
b) 35 x 215 - 35 x 210 - 175
= 35 x ( 215 - 210 ) - 175
= 35 x 5 - 175
= 175 - 175
= 0
e) 76 x 102 - 76 x 2
= 76 x ( 102 - 2 )
= 76 x 100
= 7600
c) 85 x 94 + 95 x 2 + 170 x 2
= 7990 + 2 x ( 95 + 170 )
= 7990 + 2 x 265
= 7990 + 530
= 8520
48 x 56 + 28 x 104
= 2688 + 2912
= 5600
g) 206 x 12 - 206 - 206
= 2472 - 206 - 206
= 2266 - 206
= 2060
12*85+35*182-35*94
\(12\cdot85+35\cdot182-35\cdot94\)
\(=6\cdot2\cdot5\cdot17+7\cdot5\cdot2\cdot91-7\cdot5\cdot2\cdot47\)
\(=10\cdot\left(6\cdot17+7\cdot91-7\cdot47\right)\)
\(=10\cdot410=4100\)
12*85+35*182-35*94
= 12*85+ 35*(182-94)
= 12*85+ 35*88
=1020+3080
=4100
study well
các bạn giúp mình lên 100sp nhé
thực hiện phép tính sau
a)12 x 35 + 35 x 182 - 35 x 94
b) 17 x 93 +116 x 83 +17 x 23
giúp mình nhé mình đang cần
a, 12 x 35 +35 x 182- 35 x 94
= 35 x ( 12 + 182 - 94 )
= 35 x 100
= 3500
b, 17 x 93 + 116 x 83 + 17 x 23
= 17 x ( 93 +23 ) + 116 x 83
= 17 x 116 + 116 x 83
= 116 x ( 83+17)
= 116 x 100
= 11600
tính nhanh
12. 35 + 35. 182 - 35. 94
ai nhanh mình sẽ kick
12 . 35 + 35 . 182 - 35 . 94
= 35 . ( 12 + 182 - 94)
= 35 . 100
= 3500
12. 35 + 35. 182 - 35. 94
= 35.(12+182-94)
=35.100=3500
\(12\times35+35\times182-35\times94\)
\(=35\times\left(12+182-94\right)\)
\(=35\times\left(194-94\right)\)
\(=35\times100\)
\(=3500\)
(5+6+11-41) * (1+2+3+...+100)
12*85+35-182-35*94
2*31*12+4*6+42+8*27*3
12*35+35*182-35*94
125*98-125*46-52*25
(2+4+6+...+100)*(11*7-78-1)
20152015*2016-20162016*2015
(5 + 6 + 11 - 41) x (1 + 2 + 3 + ... + 100)
= [(5 + 6) - (11 - 41)] x (1 + 2 +...+ 100)
= [11 - 30 ] x (1 + 2 + ... + 100)
= - 19 x (1 + 2 +...+ 100)
Lớp 5 chưa học số âm.
12 x 85 + 35 - 182 - 35 x 94
= 1020 - 35 x (94 - 1) - 182
= 1020 - 35 x 93 - 182
= 1020 - 3255 - 182
= - 2235 - 182
= - 2417
Lớp 5 chưa học số âm
2 x 31 x 12 + 4 x 6 + 42 + 8 x 27 x 3
= 24 x 31 + 24 + 42 + 24 x 27
= 24 x (31 + 1 + 27) + 42
= 24 x 59 + 42
= 1458
Tính nhanh:85x(35-17)+(85-17)x(-35)