Mathematics Book (Beijing Normal University Edition) The answers to all questions in the first volume of grade six! ! Urgent! ! Emergency emergency emergency emergency emergency! ! ! Urgent!

85~90 (some contents are omitted)

I.2 15- 180 = 35 people 35/ 1200 ~ (approximate) 0.029= 2.9%.

2. Solution: 200 1 year ... m2 (1= 20%) x =15x =12.5.

Three. 24/75%=32

Four. 1200/(40%-30%) = 12000

v 30000 * 3. 14% * 5 = 47 10

6. Xiao Qiang 0, Xiaoli -2, Xiaodong =2, Xiao Bing = 1, Xiaohong-1 (note: complete).

VIII.26 to 5.2

IX.6: 5 1.2, 6: 51.2, 36:25 1.44

X.2+ 1 = 3 450 * two thirds = 300g leek, 450-300 eggs = 150g.

Xi。 40000: 50000 = 4: 54+5 = 9 45000/(4+5) = 25000 5000 * 4 = 20000 5000 * 5 = 25000.