120x48=
5560: 100=
556 x 60=
Trapezoid has a large bottom 2.8dm, bottom child: 1.6dm, height 0.8dm.
a) Calculate the area of cardboard?
b) Cut a quarter of the area. Calculate the area of the cardboard remaining?
x+556=635
Bằng bao nhiêu?
Calculate: 2 + 4 + 6 + ... + 96 =?
1/- Compare : A = (1+3+5+...+139)/70 and B = (2+4+6+...+138)/69
Answer : A......... B
2/- In the follwing figure , ABED and BCFE are square . If the perimeter of the rectangle ACFD is 54cm . Then its area is :
3/- Calculate : 4/16 + 6/15 + 8/14 + 3/7 + 3/5 + 3/4 = ?
( Write your answer in the simplest form . )
Calculate: 2016-2013+2010-2007+2004-.....-9+6-3
Calculate: 2016-2013+2010-2007+2004-.... -9+6-3
calculate:2016-2013+2010-2007+2004-...-9+6-3
Lesson 1: Trapezoid sheet has a large bottom 2.8dm, baby bottom 1.6dm, height 0.8dm.
a) Calculate the area of the cardboard?
b) Cut a quarter of the area. Calculate the area of the cardboard remaining?
Lesson 2: ABCD rectangle with DC length = 27cm, AD = 20.4cm. E is a point on AB. Calculate the area of the triangle ECD?
Lesson 3: (HSKG): A trapezoidal field with a baby bottom 26m, the bottom is 8m lower than baby, the bottom is 6m lower. Average 100m2 harvested 70.5 kg paddy. How much is the field harvested?
