Current location - Training Enrollment Network - Mathematics courses - In the sixth grade of primary school, the supplementary exercise (Volume II) is 44.45 pages, and the exercise book is 47.48 pages.
In the sixth grade of primary school, the supplementary exercise (Volume II) is 44.45 pages, and the exercise book is 47.48 pages.
Su Jiaoban 46 pages

1.( 1) Length 4 Width 3

(2) parallelogram

(3) Length 6 width 3

2.S=πr? ÷2=3. 14×4? ÷2=25. 12cm? s = 10× 10 = 100cm?

3.C =( 12+8)×2 = 40m C =πd = 3. 14×20 = 62.8dm

4. 1+3+5+7+9=5×5=25

Su Jiaoban 47 pages

1.( 1) 4/5 5/9 4/9

(2) 9/8 8/9 1/9

2.( 1) solution: there are x black rabbits.

7/5 x=35, so x=25.

There are 25 black rabbits.

(2) The black rabbit is 5/7 of the white rabbit, 5/7×35=25.

3. 1+9 = 10 800÷ 10 = 80 80× 1 = 80g。

Answer: 80 grams of salt.