tinh nhanh
2002 x 8648 + 2003 x 1352 - 352
tinh nhanh 2001+2002+1981+2003*21/2003*2002-2001*2002
Tính nhanh phân số :
2001 x 2002 + 2003 x 22 + 1980 / 2002 x 2003 - 2001 x 2002
Tinh nhanh
2003×14+1998+2001×2002 / 2002+2002×503+504×2003
Viet ro loi giai nhe! Ai nhanh mk tk cho!
2003x14+1998+2001x2002/2002+2002x503+504x2003 =2003x14+1998+2001x1+2002x503+504x2003 =2003x14+1998+2001+2002x503+504x2003 =28042+1998+2001+1007006+1009512 =(28042+1009512+1007006)+1998+2001 =2044560+1998+2001=2048559 TK MIk nha bn! mk tra loi dau tien ma ! Giu loi hua nhe!
2003 x 14 + 1988 + 2001 x 2002
=28042 + 1988 + 4006002
=4036032
2002 + 2002 x 503 +504 x 2002
=2002 x 1 + 2002 x 503 + 504 x 2002
=2002 x (1 + 503 + 504)
=2002 x 908
=1817816
Tinh nhanh
2002 × 2002 +1
2003 × 2002 - 2002
\(=\frac{2002x2002+1}{2002\left(2003-1\right)}=\frac{2002x2002+1}{2002x2002}=1+\frac{1}{2002x2002}\)
tính nhanh
2003 x 14 + 1988 + 2001 x 2002
2002 + 2002 x 503 + 504 x 2002
P=\(\frac{\left(2002+1\right)\times14+1988+2001\times2002}{2002\times\left(1+503+504\right)}\)
\(=\frac{2002\times14+2002+2001\times2002}{2002\times1008}\)
\(=\frac{2002\times\left(14+1+2001\right)}{2002\times1008}=\frac{2016}{1008}=2\)
1. tính nhanh:
2004 x 10 + 1993 + 2002 + 2003
2003 + 493 x 2003 + 2003 x 1520
a =2004.10+1992+2002+2004
= 2004(10+1)+3994
= 2004.11+3994=26038
b =2003(1+493+1520)=2003.2024=4054072
tinh nhanh
(7^2003+7^2002):7^2002
(72003 + 72002) : 72002
= (72003 + 72002) . 1/72002
\(=\frac{7^{2003}}{7^{2002}}+\frac{7^{2002}}{7^{2002}}=7+1=8\)
= 7 ^ 2002 + 7 ^2003 ÷ 7 ^ 2002 +7 ^ 2002 = 7
tính nhanh
2003 x 14 + 1998 + 2001 x 2002
2002 + 2002 x + 503 + 504 x 2002
Tính nhanh A:
A = 2003 x 14 + 1988 + 2001 x 2002
2002 + 2002 x 503 + 504 x 2002