32 x 67 +32 x 2 - 32 x 2
Tính nhanh:
a, 32 x 11 + 32 x 67 + 78 x 68
b, 76 x 41 + 21 x 24 - 76 x 20
a,= 32.(11+67) +78.68
32.78+78.68
78.(32+68)
78.100
= 7800
b,76.(41-20)+21.24
=76.21+21.24
=21.(76+24)
=21.100
=2100
tính bằng 2 cách
b. 106 x 67 + 32]
b) 106 x 67 + 32 = 7102 + 32 = 7134
Tí ăn xog làm cách 2
(-5).8.(-3).(-2)^3
125-(-75)+32-(48+32)
3.(-7)^2+2.(-15)-273
tìm x
39-(x-27)=67
55-/7-2.x/=-8
3.(x-5)-2(x+6)=-56
998 x 32 + 998 x 67 + 998 = ?
998 x 32 + 998 x 67 + 998 = 998 x 32 + 998 x 67 + 998 x 1 = 998 x (32+67+1)=998 x 100=99800
998 x 32 + 998 x 67 + 998
= 998 x 32 + 998 x 67 + 998 x 1
= 998 x (32+67+1)
=998 x 100=99800
Theo công thức: a.b + a.c = a.(b+c)
Tìm số tự nhiên x biết:
a) 504 : (16 – 3x) = 72
b) 272 – (4x+15) = 45
c) (x : 23 + 45).67 = 8911
d) [(x+32) – 17].2 = 42
x - 56 = 89 + 32 + 67
x - 56 = 89 + 32 + 67
x - 56 = 188
x = 188 + 56
x = 244
t mk nha bạn
x - 56 = 89 + 32 + 67
x - 56 = 188
x = 188 + 56
x = 244
x - 56 = 89 + 32 + 67
x - 56 = 188
x = 188 + 56
x = 244
3.(x+1)-32=67
3.(x+1)-32=67
=> 3(x+1)=67+32
=> 3(x+1)=99
=> x-1=99:3
=> x-1=33
=> x=33+1
=> x=34
3.(x+1)-32=67
3.(x+1)=67+32
3.(x+1)=99
x+1=99:3
x+1=33
x = 33 - 1
x= 32
3(x+1)-32=67
<=>3x+3-32=67
<=>3x=67-3+32
<=>3x=96
<=>x=96:32
<=>x=32
56 x 33 = ? 46 x 32 = ?
88 x 88 = ? 67 x 43 = ?
97 x 45 = ? 30 x 15 = ?
56 x 33= 1848
88 x 88= 7744
97 x 45= 4365
46 x 33= 1518
67 x 43= 2881
30 x 15= 450
Tính nhanh:
67 x 54 + 89 x 4 + 63 x 34 x 32 x 45 =