ÔN TẬP TOÁN 6
BÀI TẬP :
I/ THỰC HIỆN PHÉP TÍNH
Bài 1: Thực hiện phép tính:
a) 3.52 + 15.22 – 26:2
b) 53.2 – 100 : 4 + 23.5
c) 62 : 9 + 50.2 – 33.3
d) 32.5 + 23.10 – 81:3
e) 513 : 510 – 25.22
f) 20 : 22 + 59 : 58
g) 100 : 52 + 7.32
h) 84 : 4 + 39 : 37 + 50
i) 29 – [16 + 3.(51 – 49)] j) (519 : 517 + 3) : 7
k) 79 : 77 – 32 + 23.52
l) 1200 : 2 + 62.21 + 18
m) 59 : 57 + 70 : 14 – 20
n) 32.5 – 22.7 + 83
o) 59 : 57 + 12.3 + 70
p) 5.22 + 98:72
q) 311 : 39 – 147 : 72
r) 295 – (31 – 22.5)2 s) 151 – 291 : 288 + 12.3
t) 238 : 236 + 51.32 - 72
u) 791 : 789 + 5.52 – 124
v) 4.15 + 28:7 – 620:618
w) (32 + 23.5) : 7
x) 1125 : 1123 – 35 : (110 + 23) – 60
y) 520 : (515.6 + 515.19)
z) 718 : 716 +22.33
aa)
Bài 2: Thực hiện phép tính:
a) 47 – [(45.24 – 52.12):14]
b) 50 – [(20 – 23) : 2 + 34]
c) 102 – [60 : (56 : 54 – 3.5)]
d) 50 – [(50 – 23.5):2 + 3]
e) 10 – [(82 – 48).5 + (23.10 + 8)] : 28
f) 8697 – [37 : 35 + 2(13 – 3)]
g) 2011 + 5[300 – (17 – 7)2]
h) 695 – [200 + (11 – 1)2]
i) 129 – 5[29 – (6 – 1)2]
j) 2010 – 2000 : [486 – 2(72 – 6)] k) 2345 – 1000 : [19 – 2(21 – 18)2]
l) 128 – [68 + 8(37 – 35)2] : 4
m) 568 – {5[143 – (4 – 1)2] + 10} : 10
n) 107 – {38 + [7.32 – 24 : 6+(9 – 7)3]}:15
o) 307 – [(180 – 160) : 22 + 9] : 2
p) 205 – [1200 – (42 – 2.3)3] : 40
q) 177 :[2.(42 – 9) + 32(15 – 10)]
r) [(25 – 22.3) + (32.4 + 16)]: 5
s) 125(28 + 72) – 25(32.4 + 64)
t) 500 – {5[409 – (23.3 – 21)2] + 103} : 15
u)
II. TÌM X
Bài 1: Tìm x:
a) 71 – (33 + x) = 26
b) (x + 73) – 26 = 76
c) 45 – (x + 9) = 6
d) 89 – (73 – x) = 20
e) (x + 7) – 25 = 13
f) 198 – (x + 4) = 120
g) 140 : (x – 8) = 7
h) 4(x + 41) = 400
i) 11(x – 9) = 77 j) 5(x – 9) = 350
k) 2x – 49 = 5.32
l) 200 – (2x + 6) = 43
m) 2(x- 51) = 2.23 + 20
n) 450 : (x – 19) = 50
o) 4(x – 3) = 72 – 110
p) 135 – 5(x + 4) = 35
q) 25 + 3(x – 8) = 106
r) 32(x + 4) – 52 = 5.22
Bài 2. Tìm x
a) 156 – (x+ 61) = 82
b) (x-35) -120 = 0
c) 124 + (118 – x) = 217
d) 7x – 8 = 713
e) x- 36:18 = 12
f) (x- 36):18 = 12
g) (x-47) -115 = 0
h) 315 + (146 – x) = 401
i) (6x – 39 ) : 3 = 201
j) 23 + 3x = 56 : 53
k) 5x + x = 39 – 311:39 l) 7x – x = 521 : 519 + 3.22 - 70
m) 7x – 2x = 617: 615 + 44 : 11
n) 0 : x = 0
o) 3x = 9
p) 4x = 64
q) 2x = 16
r) 9x- 1 = 9
s) x4 = 16
t) 2x : 25 = 1
Bài 3: Tìm x:
a) x - 7 = -5
b) 128 - 3 . ( x+4) = 23
c) [ (6x - 39) : 7 ] . 4 = 12
d)( x: 3 - 4) . 5 = 15 a) | x + 2| = 0
b) | x - 5| = |-7|
c) | x - 3 | = 7 - ( -2)
d) ( 7 - x) - ( 25 + 7 ) = - 25 e)( 3x - 24 ) . 73 = 2 . 74
g) x - [ 42 + (-28)] = -8
e) | x - 3| = |5| + | -7|
g) 4 - ( 7 - x) = x - ( 13 -4)
III. TÍNH NHANH
Bài 1: Tính nhanh
a) 58.75 + 58.50 – 58.25
b) 27.39 + 27.63 – 2.27
c) 128.46 + 128.32 + 128.22
d) 66.25 + 5.66 + 66.14 + 33.66
e) 12.35 + 35.182 – 35.94
f) 48.19 + 48.115 + 134.52
g) 27.121 – 87.27 + 73.34
h) 125.98 – 125.46 – 52.25 i) 136.23 + 136.17 – 40.36
j) 17.93 + 116.83 + 17.233
k) 5.23 + 35.41 + 64.65
l) 29.87 – 29.23 + 64.71
m) 19.27 + 47.81 + 19.20
n) 87.23 + 13.93 + 70.87
Loga
Sinh Học lớp 12
