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What is the warm-up answer to the seventh grade mathematics "summer vacation series" published by North Women and Children Publishing House? [urgent need]
One, seven, go.

chapter one

[Basic License]

1. 1.-5 8 meters west of school 2.3 2/3 -5/ 14 3.0 0

4.3 85. Place of origin 6. & gt7.3.5* 10~ 2

8.100-189.-a+b+c10.5.1*10 to the 8th power.

Second, ADBBC BBBDC.

Three. 2 1 .22. (1)-2 (2)-4731/4 23. (1) 36km (2)13.2kg.

[Full promotion]

1.8 1 2.5 or 1 3.24. -4 or 2 5. 1 6.9 7.3.

8.3 * (4-6+ 10) 9- 1 1.ADC 12。 (1)-4 1/4 (2) You can enter b=0 or a = b.

[Warm-up for Senior High School Entrance Examination]

1.-22.123.1/44.73 *10 to the ninth power of 5.8 1/77.

6.2040 7— 1 1.BBBCC 12。 four

chapter two

[Basic License]

I. 1.2 (m-5) a ~+b ~ 2。 (40-n) 3。 (Male-female) /4

4.20%x+40%y 5。 -6 4 6.3 2 7.- 17 8.x( 1+5%)^

x+( 1+5%)x+( 1+5%)^x 9.4mv/(4m+v) 10。 n(n+2)+ 1=(n+ 1)^

Second, CCCDD BCAAB.

Three. 2 1.2A+B22。 -A B23.2x ~-X-X+224.4m-5

25.s = 2r- 1/2 Uyghur r (8-2 Uyghur) cm.

[Full promotion]

1.3/2m+52.2a-3-1.3, omitted 4. omitted 5-7.bdd8. (1) 3a+3b.

(2) 3ab (3) a+3ab-2b 9。 (1) 8 people (2)(2n+4) 44 people.

[Warm-up for Senior High School Entrance Examination]

1.(3m+5n) 2。 15b/(a-b) 3。 1.44a 4。 No.50 (1+p%) 5. 20

6.t/6 7。 C 8。 A nine. ( 1)a B- R(2)(6000- 100)M 10.34

8n+2