c: =75x100-65x100=10x100=1000
f: =107-[20:4+9]:2
=107-[5+9]:2
=107-7=100
c)
75 x 100 -65 x 100
= 10 x 100
= 1000
f)
107 - [20:4+9] :2
= 107 - [5+9] :2
= 107 -7
= 100
1. thực hiện phép tính :
a/ 27 . 332 + 93 . 43 + 57 . 61 + 69 . 57
b/ 34 . 75 + 75 . 66 - 65 . 100
c/ ( 456 . 11 + 912 ) . 37 : 13 : 74
d/ 62 : 4 . 3 + 2 . 52
e / 5 . 42 - 18 : 32
g/ [ ( 315 + 372 ) . 3 + ( 372 + 315 ) . 7 ] : ( 26 . 13 + 74 .14 )
h/ 12 : { 390 : [ 500 - ( 125 + 35 . 7 ) ] }
k / 192000 - ( 1500 . 2 + 1800 . 3 + 1800 .2 : 3 )
tính:a,A=11.322.37 -915/(2.314)2b,B=(22+29).(34+33)c,C=(75-74).(56+55)d,D=(66+65).(35+34)/6.184
câu 1 :23*75+25*12+180+25*11
câu 2; 25*46+75*84+25*72+34*75
*là nhân nhé
a, 35. 34+ 35. 36+ 66. 75+ 66. 45
b, 3. 25. 8+ 4. 37. 6+ 2. 38. 12
c, 36. 28+ 36. 82+ 64. 69+ 64. 41
d, 39. 8+ 60. 2+21.8
Thuc hien phep tinh ( tinh nhanh neu co the )
a) 27 . ( 58 - 43 ) + 43 . ( 27 + 58 )
b) 66 . ( 34 - 75 ) - 34 . ( 66 + 75 )
Minh can gap !!!!!!
35 * 34 + 35 * 34 + 65 * 75 + 65 * 45
Tính nhanh:
a)35*34+35*86+65*75+65*45
b)21*72 -11*72+90*72+49*1258*16
Tính nhanh :
a) 35 × 34 + 35 × 86 + 65 × 75 + 65 × 45
b) 21 × 72 - 11 × 72 + 90 × 72 + 49 × 125 ×16
Thực hiện các phép tính sau:
a) 107-{38+[7.3^2-24:6+(9-7)^3]}:15
b) 307-[(180-160):2^2+9]:2
c)205-[1200-(4^2-2.3)^3]:40
d)177:[2.(4^2-9)+3^2(15-10)]
e)[(25-2^2.3)+(3^2.4+16)]:5
a) 2345 – 1000 : [19 – 2(21 – 18)2] b) 128 – [68 + 8(37 – 35)2] : 4 c) 568 – {5[143 – (4 – 1)2] + 10} : 10 d) 107 – {38 + [7.32 – 24 : 6+(9 – 7)3]}:15 e) 307 – [(180 – 160) : 22 + 9] : 2 f) 205 – [1200 – (42 – 2.3)3] : 40 g) 177 :[2.(42 – 9) + 32(15 – 10)] h) [(25 – 22.3) + (32.4 + 16)]: 5 i) 125(28 + 72) – 25(32.4 + 64) j) 500 – {5[409 – (23.3 – 21)2] + 103} : 15 |
Viết số mũ giùm mình ạ!
