0.75=2/4
4/3 x 699 x 3/4
= [4/3 x 3/4]x 699
= 1x 699
=699
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0.75=2/4
4/3 x 699 x 3/4
= [4/3 x 3/4]x 699
= 1x 699
=699
Tinh nhanh
4/3×699×0.75
a,23/4 / 3 + 37/15 * 21/74
tinh thuan tien
4/3*699*0.75
Tinh thuan tien
1,234 × 4 + 1,234 × 3:+ 1,234 × 2 + 1,234
tinh bang cach thuan tien nhat : 3/4 x 4/5 + 5/6 x 6/7 x 7/8
tinh bang cach thuan tien nhat : 1+2-3-4+5+6-7-8+9+...+2013+2014-2015-2016
Tinh bang cach thuan tien nhat:
82,5:25:4
bai toan tinh bang cach thuan tien nhat
2/5x7 + 3/7x10 + 4/10x14 +9/14x21 =
1. tinh bang cach thuan tien nhat 73,5 -31,6 ,4