The final exam of primary school grade five mathematics volume one and the answer. The final exam of primary school grade five mathematics volume one 20 1 1. 1 (and the answer) is fast! ! ! It's urgent 1. Wisdom Bao Capsule (13)

1, fill in () >; 、& lt、=

1 1×0.8( < ) 1 1 5.5×0. 1( = )5.5÷ 10 0.89( < )0.9

1÷0.9 ( > ) 1 2÷3( < )0.67 4.6÷ 100( < )4.6×0. 1

2. The parallelogram has an area of 5.6 square meters, a height of 2 meters and a base of (2.8) meters.

3. During the New Year's Day, an electrical appliance store sold χ air conditioners, and the number of refrigerators sold was twice that of air conditioners 10. This electronics store sells (2x+65,438+00) refrigerators.

There are five cards, which are 5, 6, 7, 8 and 9, among which 6 is a lucky number.

(1) Xiaohong randomly draws one. The probability that she draws 6 is (20%), and the probability that she draws more than 6 is (60%).

(2) If Xiaoji draws 5 and 9 and Xiaohong draws the rest, the probability that she draws 6 is (33.3%).

Two. I am an impartial judge (cross right and cross wrong) (4 points)

1 and χ= 1.8 are the solutions of equation 4χ+3.6= 10.8. ( √ )

2. Triangles with equal areas must have the same shape. ( × )

3. If the divisor is less than 1, the quotient is greater than the dividend (except 0). ( × )

4. Pull the parallelogram wooden frame into a rectangle, and the perimeter and area are enlarged. ( × )

Third, clever calculation.

1, how to calculate the following question as simply as possible. (3 points for each question)

5.4× 12.3+5.4×7.7 42× 10 1-42

=5.4*( 12.3+7.7) =42*( 10 1- 1)

=5.4*20 =42* 100

= 108 =4200

0.25×3.2× 12.5

=(0.25*4)*( 12.5*0.8)

= 10* 1

= 10

Fourth, integrate into life.

1, column solution

(1) Cut a 6.4m-long ribbon every1.4m and wrap it in a gift box. How many gift boxes can this ribbon wrap?

6.4/ 1.4? 4 (pieces)

A: One * * * can pack four gift boxes.

(2) The school held a painting and calligraphy competition, and 75 people won prizes in the fourth and fifth grades. The number of winners in the fifth grade is 0.5 times that in the fourth grade. How many students have won prizes in grades 4 and 5? (column equation solution)

Solution: There are X winners in Grade Four and 1.5x winners in Grade Five.

1x+1.5x = 7530 *1.5 = 45 people.

2.5x=75

x=75/2.5

x=30

(3) Trapezoidal wheat fields with a bottom of 76m, a bottom of120m and a height of 50m can yield 93 10/0kg of wheat per square meter on average.

(76+ 120)×50=9800 (m2)

93 10/9800=0.95 (kg)

I don't know if it is, hehe!