Fill in the appropriate numbers in the box:
5*2/3=(5#3/2)*(2/3#3/2)=5*3/2= 15/2
2/7*9/ 14=(2/7# 14/9)*(9/ 14# 14/9)=2/7# 14/9=4/9
1/2*3/5=( 1/2#5/3)* 1= 1/2#5/3=5/6
Simplified ratio:
3.5 ratio 1.5 = 7 to 3
4 to 0. 16=25 to 1
0. 12 to 3/5= 1 to 5
10.4 to 7.2= 13 to 9
0.6 to 2/9=27 to 10
9/7 to 0. 18=50 to 7
P5:
Look at the picture to find the relationship:
28:4 2 14 7
14:2 7
4:2
Solve the problem:
2. (Music) (50) (Calligraphy) (27)(46)%
3.(9 to 16)(5 to 7)
P6:
Read and copy.
Goose-Goose Teeth-Teeth Look-Book Sun Running Planes-Plants
Train-rain driver-where is the river-here.
P 10:
Simplified ratio:
0.27 to 0.36=3 to 4
12 is 144= 1 yes 12.
One fifth to five/18= 162 to 25.
The three half ratios are 0. 14=25 to 1.
Fill in the box.
1. ratio B= 13 ratio 20
2.a to B=9 to 8
3. The ratio of salt to water is 1 to 19.
4.a to B=5 to 6
5.a to B =7 to 4= 175 to 100.
P 1 1:
Solve the problem.
1.(9)( 160)( 1)( 1 15)
2.( 1 1)
3.( 145)
Area ratio of Party A and Party B: 1 to 2 1.
P 12:
Read one by one.
14 22 3 1 45 56 63
Read and fill in the blanks.
Hobbies 2. Newspapers 3. Cinema 4. Hospital 5. Singer 6. Subway.
P 16:
Find the ratio.
2.5 to 0.5=5.
0.8 to 0.5=8/5
780kg is 39/ 100t =2.
0.22 to 0.33=2/3
39/9 1=39/9 1
0. 12 to 2/3=9/50
P 17:
Solve the problem.
There are 32 people in the first group, 48 people in the second group and 60 people in the third group.
P 18:
Connect.
12 2 1 35 43 54
Choose and answer the sentences.
1.C 2。 C 3。 C 4 explosive C
P22:
For the record, I won't report the calculation results. Do it yourself )
Fill in the blanks.
1.(37.5)(40)
2. (Current price) (Original price) (90)(50)
3.(35)( 13 to 7)
Solve the problem.
1.50
2. 16
P23:
Find the circumference of a circle.
35.12cm
Fill in the blanks.
1.(4)(3)(4/3) (multiplied by 5)
2.( 1 1)(4)( 12)(5.5)(275)
3.(3)(5)(5)(8)(60)
4.(23)(5)
5.(6)(4)
P24:
Wrong, wrong, wrong, right.
P28:
select
B
Fill in the blanks according to the rules.
1.(0.5)(3/7)(37.5%) Law: All molecules are three.
2.(6/5)(60%)( 1.3) Rule: Two numbers are a group and the sum is 1.9.
3. (40%) (1.4) (33/20) (190%) Law: molecule plus 5.
P29:
1. (translation 4)
2. (Rotate 90 degrees counterclockwise) 9 (Translate 3 to the right)
Solve the problem.
1.36
2. 15
P30:
1. Error 2. Error 3. Right 4. Error 5. Error 6. wrong
Choose the right word.
2 1 1 1 1 1 12
Ok, I sent it here. Shit, I'm tired! 88. Do it yourself. Good luck!