8 - 1 = ( )
10 + 54 = ( )
64 - 5 = ( )
2 + 64 = ( )
1 × 8 = ( )
22 - 7 = ( )
39 - 23 = ( )
82 - 78 = ( )
3 × 5 = ( )
47 + 25 = ( )
57 + 43 = ( )
8 × 1 = ( )
5 + 28 = ( )
5 + 43 = ( )
62 - 60 = ( )
2 × 8 = ( )
2 + 35 = ( )
68 - 15 = ( )
2 × 8 = ( )
1 × 7 = ( )
17 + 7 = ( )
3 × 9 = ( )
49 - 18 = ( )
85 - 1 = ( )
39 + 44 = ( )
20 - 6 = ( )
37 - 9 = ( )
5 × 5 = ( )
64 - 22 = ( )
10 + 33 = ( )
70 - 7 = ( )
43 + 6 = ( )
3 × 6 = ( )
99 - 42 = ( )
9 - 1 = ( )
1 × 3 = ( )
5 + 93 = ( )
38 + 4 1 = ( )
48 - 2 1 = ( )
97 - 14 = ( )
64 - 17 = ( )
7 × 8 = ( )
2 × 9 = ( )
24 + 6 1 = ( )
9 × 2 = ( )
5 × 4 = ( )
35 + 37 = ( )
1 × 3 = ( )
1 × 9 = ( )
43 + 1 = ( )
1 × 7 = ( )
1 × 9 = ( )
28 + 20 = ( )
3 × 8 = ( )
37 + 3 = ( )
19 + 8 1 = ( )
46 + 13 = ( )
13 + 40 = ( )
43 + 35 = ( )
68 + 25 = ( )
7 × 4 = ( )
8 × 7 = ( )
9 × 8 = ( )
1 × 6 = ( )
3 × 4 = ( )
40 + 14 = ( )
93 - 3 1 = ( )
60 + 8 = ( )
12 + 29 = ( )
45 + 38 = ( )
97 - 5 = ( )
5 × 3 = ( )
6 × 5 = ( )
69 - 67 = ( )
7 × 8 = ( )
89 - 60 = ( )
9 1 - 28 = ( )
95 - 44 = ( )
5 × 2 = ( )
2 × 8 = ( )
30 + 15 = ( )
5 × 2 = ( )
18 + 43 = ( )
10 + 90 = ( )
98 - 58 = ( )
65 + 35 = ( )
7 × 1 = ( )
78 - 34 = ( )
87 - 23 = ( )
25 + 55 = ( )
42 - 3 1 = ( )
5 1 + 5 = ( )
83 + 7 = ( )
2 × 5 = ( )
75 - 73 = ( )
10 + 72 = ( )
29 + 57 = ( )
75 - 33 = ( )
8 × 4 = ( )
39+[-23]+0+[- 16]=
[- 18]+29+[-52]+60=
[-3]+[-2]+[- 1]+0+ 1+2=
[-30 1]+ 125+30 1+[-75]=
-4+3=
-8+|-5|=_______。
-38)+52+ 1 18+(-62)=
(-32)+68+(-29)+(-68)=
(-2 1)+25 1+2 1+(- 15 1)=
12+35+(-23)+0=
(-6)+8+(-4)+ 12 =
27+(-26)+33+(-27)
12+35+(-23)+0=
39+[-23]+0+[- 16]=
[- 18]+29+[-52]+60=
[-3]+[-2]+[- 1]+0+ 1+2=
[-30 1]+ 125+30 1+[-75]=
[- 1]+[- 1/2]+[+3/4]+[- 1/4]=
[-7/2]+[+5/6]+[-0.5]+4/5+ 19/6=
[-26.54]+[-6. 14]+ 18.54+6. 14=
1.125+[-17/5]+[-1/8]+[-0.6] = 2. Calculation:
( 1)-8+4÷(-2); (2)6-(- 12)÷(-3);
(3)3? (-4)+(-28)÷7; (4)(-7)(-5)-90÷(- 15);
3. Calculation:
4. Calculation:
(7) 1÷(- 1)+0÷4-(-4)(- 1); (8) 18+32÷(-2)3-(-4)2×5.
5 *. Calculation (the letters in the question are all natural numbers):
( 1)(- 12)2÷(-4)3-2×(- 1)2n- 1；
(4)〔(-2)4+(-4)2? (- 1)7〕2m？ (53+35).
The second copy
Math Test of Junior One (6)
(Chapter 1 Rational Number 200 1, 10, 18) Proposer: Sun Score.
I. Multiple-choice questions: (3 points for each question, 30 points for * * *)
1.|-5 | equals ........................................... ()
(A)-5 (B)5 (C) 5 (D)0.2
2. The number represented by the origin and the point to the right of the origin on the number axis is ....................... ().
(a) Positive number (b) Negative number (c) Non-positive number (d) Non-negative number
3. The algebraic expression "the difference between the products of two numbers B and M" is ..................... ().
(A) (B) (C) (D)
4. The number whose reciprocal equals itself is .................................... ().
(A) 1 (B)2 (C)3 (d) countless.
5. Of the six numbers (n is a positive integer), the number of negative numbers is ..................................................... ().
1 (B)2 (C)3 (D)4。
6. If point A and point B on the number axis correspond to rational numbers A and B respectively, the following relationship is correct ().
(A)a | b |, then a+b 0. (Fill in ">" or "=" or "
17. Fill in the appropriate item on the horizontal line in brackets: 2x-(3a-4b+c) = (2x-3a)- ().
18. Observe the following formula and you will find the law: ; ; ; ..... Please use the same letter to represent the number, and use the equation to represent the law in the above formula.
Three. Calculation (write down the calculation process): (7 points for each question, ***28 points)
19.20.
2 1.(n is a positive integer)
22.
Fourth, if. (1) Find the values of a and b; (4 points for this question)
(2) the value. (6 points for this question)
The third copy
Math Test of Junior One (6)
(Chapter 1 Rational Number 200 1, 10, 18) Presenter: Sun.
Class name score
I. Multiple-choice questions: (3 points for each question, 30 points for * * *)
1.|-5 | equals ........................................ ()
(A)-5 (B)5 (C) 5 (D)0.2
2. The number represented by the origin and the point to the right of the origin on the number axis is ..................... ().
(a) Positive number (b) Negative number (c) Non-positive number (d) Non-negative number
3. The algebraic expression "the difference between the products of b and m" is ................. ().
(A) (B) (C) (D)
4.-12+1-8+39 = (-12-8)+(11+39) is the application of ().
A, additive commutative law b, additive associative law c, additive commutative law and associative law d, multiplicative distributive law.
5. Rewrite 6-(+3)-(-7)+(-2), omit the plus sign, and the total should be ().
a、6-3+7-2 B、6-3-7-2 C、6-3+7-2 D、6+3-7-2
6. If |x|=3 and |y|=7, the value of x-y is ().
A, 4 B, 10c, -4 or-10d, 4, 10.
7. If a× b < 0, there must be ().
A, a > 0, b < 0 b, a < 0, b > 0 c, a and b are the same number, and d, a and b are different numbers.
8. If the sum of two rational numbers is positive and the product is negative, then these two rational numbers ().
A, both are positive numbers. B, the number with the largest absolute value is positive and the other is negative.
C, all negative numbers D, the number with the largest absolute value is negative, and the other is positive.
9. Stationery store, bookstore and toy store are located in an east-west street in turn. The stationery store is 20 meters west of the bookstore, and the toy store is 20 meters east of the bookstore 100 meters. Xiaoming walks 40 meters east from the bookstore, and then walks -60 meters east. At this time, Xiao Ming's position is ().
A, stationery store B, toy store C, stationery store D is 40 meters west, and toy store is -60 meters east.
10. What is the known rational number and its position on the number axis?
As shown in the figure, when 1a > 0, ②-b < 0, ③ a-b > 0,
(4) Among the four relationships of A+B > 0, the correct one is ().
a，4 B，3 C，2 D， 1
2. True or false questions: (For the right picture "+",the wrong picture "○", each question 1, and ***6).
1 1.0.3 is neither an integer nor a fraction, so it is not a rational number. ( )
12. The absolute value of rational number is equal to the reciprocal of this number, which is negative. ( )
13. The increase in income is recorded as +5 yuan in 5 yuan, and the decrease in expenditure is recorded as -5 yuan in 5 yuan. ( )
14. If a is rational, -a must be negative. ( )
15. If you subtract a rational number from zero, you still get this number. ( )
16. Multiply several rational numbers. If the number of negative factors is odd, the product is negative. ( )
Three. Fill in the blanks: (3 points for each question, *** 18 points)
17. Fill in the appropriate items in brackets to make the equation hold: A+B-C+D = A+B- ().
18. Comparative size: │-│-│. (fill in ">" or "
19. As shown in the figure, if the distance between any two adjacent points in the points marked on the number axis is equal, then the value of a =.
?
20. One addend is 0. 1, and the sum is -27.9, and the other addend is.
The sum of 2 1 -9, +6 and -3 are less than the sum of their absolute values.
22. Equation × [(-5)+(- 13)] = According to the algorithm of is.
4. Fill in the results directly in the following lines: (2 points for each question, *** 12 points)
23.-2+3= ; 24.-27+(-5 1)= ; 25.- 18-34= ;
26.-24-(- 17)= ; 27.- 14×5= ; 28.- 18×(-2)= 。
Verb (abbreviation of verb) calculation (write down the calculation process): (6 points for each question on 29 and 30, 7 points for each question on 3 1 32, ***26 points)
29.(-6)-(-7)+(-5)-(+9) 30.
3 1.32.(-5)×(-3 )- 15× 1 +〔 -( )×24〕