Question

Thực hiện các phép tính (tính nhanh nếu có thể)

A = 4 5 ^ 2 + 3 ^ 6 / (3 ^ 4)
B = 7 ^ 5 / (7 ^ 3) - 6 ^ 2 * 0.2 + 2 ^ 3 * 0.2 ^ 2
D = 5 ^ 2 3 ^ 2 + 25.91
C = 2 ^ 2 * 0.3 - (1 ^ 10 + 8) / (3 ^ 2)
E = 24.93 + 6.68 * 0.4 - 24.61
G = 2665 / [213 - (21 - 19) ^ 3]
H = 12 / \{390 / [500 - (125 + 35.7)]\} I = [(- 8) + (- 7)] + 13
K = 1999 + (- 2000) + 2001 + (- 2002)
N = (- 203) + 134 + (- 97) + (- 34)
M=-5. (20 + 18) -5.(-8)
L=31.(-18)+31. (- 81) - 31
O = (7.3 - 3) / (- 6)

Answer 1

a: \(=4\cdot25+3^2=100+9=109\)

b: \(=7^2-36\cdot0,2+8\cdot0,04=49-7,2+0,32=42,12\)

c: \(=15^2+25\cdot91=25\left(9+91\right)=2500\)

d: \(=4\cdot0,3-9:9=1,2-1=0,2\)

e: \(=24\cdot93+24\cdot6,8-24\cdot61=38.8\cdot24=931.2\)

f: \(=\dfrac{2665}{213-8}=\dfrac{2665}{205}=13\)

g: \(=\dfrac{12}{390:\left(500-125-245\right)}=\dfrac{12}{390:130}=\dfrac{12}{3}=4\)

h: \(=-15+13=-2\)

i: \(=\left(-1\right)+\left(-1\right)=-2\)

n: \(=-203-97+134-34=-300+100=-200\)

m: \(=-5\cdot38+5\cdot8=-5\cdot30=-150\)