gia tri bieu thuc(bang cach nhanh nhat) :2+3+4+8+6+7+100
Tinh gia tri bieu thuc bang cach thuan tien nhat :
A= 1/10 x 2/9 x 3/8 x 4/7 x 5/6 x 6/5 x 7/4 x 8/3 x 9/2
Tinh gia tri bieu thuc : 170 + 9 + 6/100 + 3/10 ; tinh bang cach thuan tien : 1/2 : 0.5 - 1/4 : 0.25 + 1/8 : 0.125 - 1/10 : 0.1
2716 : 910 . 30
tinh gia tri bieu thuc bang cach nhanh nhat
2716 : 910 . 310=348 : 320 . 310=348-32+10=326
\(27^{16}:9^{10}.3^0=\left(3^3\right)^{16}:\left(3^2\right)^{10}.1=3^{3.16}:3^{2.10}=3^{48}:3^{20}=3^{48-20}=3^{28}\)
464 : 4 + 81 x 2
tinh gia tri bieu thuc bang cach thuan tien nhat
\(464\div4+81\times2\)
\(=116+162\)
\(=278\)
90872:296
tinh gia tri cua bieu thuc
6- 3\7*14\9=
tinh bang cach thuan tien
3\4*4\7= 3\7* 3\4+3\4=
ai tra loi nhanh thi minh tik cho
\(90872:296=307\)
\(6-\frac{3}{7}\)X \(\frac{14}{9}=\frac{124}{23}\)
\(\frac{3}{4}\)X \(\frac{4}{7}=\frac{3}{7}\)X \(\frac{3}{4}+\frac{3}{4}=\frac{9}{28}+\frac{3}{4}=\frac{15}{14}\)
tinh gia tri bieu thuc bang cach hop li nhat b=1.3.5...............2011.2013/1008.1009..............2014
tinh gia tri bieu thuc sau bang cach hop li nhat
3,265+4,572+2,735+1,128
3,265 + 4,572 + 2,735 + 1,128
= (3,265 + 2,735) + (4,572 + 1,128)
= 6 + 5,7
= 11,7
3,265+4,572+2,735+1,128
=(3,265+2,735)+(4,572+1,128)
= 6 + 6
= 12
tinh gia tri bieu thuc bang cach thuan tien nhat
53.68 * 15.6 - 53.68 *5.6
\(53.68x15.6-53.68x5.6\)
\(=53.68x\left(15.6-5.6\right)\)
\(=53.68x10\)
\(=536.8\)
Nhớ k mk nha bn minh tuyệt vọng lắm!
53,68*15,6-53,68*5,6
=53,68* (15,6-5,6)
=53,68-10
=5,368
cho bieu thuc P = 2004 + 540 : (x-6) x la so tu nhien.tim gia tri so x de bieu thuc P co gia tri lon nhat,P bang bao nhieu