How to do the sixth question on page 47 of the fourth grade second volume mathematics book people's Education Press

98+265+202
=98+202+265
=565
273-73-27
=273-(73+27)
=173
250*13*4
=250*4*13
=13000
3200/4/25
=3200/(4*25)
=32
88*125
=(80+8)*125
=11000
99*38+38
=(99+1)*38
=3800
17*23-23*7
=(17-7)*23
=230
72*125
=(80-8)*125
=9000

RELATED INFORMATIONS

1. Simple calculation: 3 / 4 × 3 / 4 + 1 / 4 × 0.75% - 75%
2. The fourth and the third answer to the area of the shadow part of the figure
3. If a withdraws 240 yuan and B withdraws 40 yuan, then the deposits of AB and ab are exactly the same. How many yuan did AB and ab deposit?
4. Quadratic function in mathematics of grade nine Given the quadratic function y = ax square + BX + C, when x = 0, y = 7. When x = 1, y = 0, when x = - 2, y = 9 Analytic expression of quadratic function of ball I want a more detailed process, thank you
5. The price of a product is reduced by 10% during the promotion period, and then increased by 10% after the promotion. At this time, the price of the product is lower than the original price () A. Unchanged B. reduced C. increased D. unable to judge
6. Naughty and Xiaoxiao are on a straight road. They start from a and B which are 200 meters apart at the same time. Naughty walks 50 meters per minute, Xiaoxiao walks 40 meters per minute. How many meters are they apart in two minutes? Please consider the possible different situations from the location and direction of naughty and Xiaoxiao, and then fill in four different answers ① Two minutes later, they may be () meters apart. ② two minutes later, they may be () meters apart. ③ two minutes later, they may be () meters apart. ④ two minutes later, they may be () meters apart
7. In an extracurricular practice activity, students need to measure the distance between two pavilions A and B on both sides of an artificial lake in a park. Now, AC = 30m, BC = 70m, ∠ cab = 120 ° are measured. Please calculate the distance between two pavilions A and B
8. Mathematics final paper of grade one 8. If the ratio of the two angles is 7 ∶ 3 and the difference is 72 degrees, the relationship between the two angles is () (A) Equality (b) mutual complement (c) complementarity (d) cannot be determined 9. The charging standard of a taxi is: the starting price is 6 yuan (i.e. the driving distance is less than 3 km, you need to pay 6 yuan). After 3 km, you will be charged 1.5 yuan for every additional kilometer (less than 1 km is counted as 1 km). Someone will pay 18 yuan for taking this kind of taxi from place a to place B. if the distance from place a to place B is 1 km, the maximum value is () （A）7 （B）9 （C）10 （D）11 10. Party A and Party B each use a square piece of paper ABCD to fold a 45 ° angle (as shown in the figure), and their methods are as follows: A: fold the paper along the diagonal AC so that point B falls on point D, then ∠ 1 = 45 °; B: fold the paper along am and an so that B and D respectively fall on a point P on the diagonal AC, then ∠ man = 45 °. For the two people's practice, the following judgment is correct () A) Both a and B are right (b) both a and B are wrong (c) both a and B are wrong (d) both a and B are wrong
9. If a certain commodity is sold at a discount of 7.5% of the price, it will lose 25 yuan, and if it is sold at a discount of 9% of the price, it will make a profit of 20 yuan. What is the price of the commodity and what is the purchase price?
10. Ask people to teach edition seven grade two mathematics page 47-48 answer, thank you
11. There are both chickens and rabbits in the chicken cage. There are 12 counting legs, 4 heads, how many chickens? How many rabbits?
12. Who can help me to review unit 1 ~ 3 of Volume 1 (PEP) of primary school mathematics grade 6
13. It is known that f (x) = loga 1-mx / X-1 (a > 0, a ≠ 1, m ≠ 1) is an odd function g(x)=f(x)+loga[(x-1)(ax+1)] 1. Find M 2. Find the definition field of function g (x)
14. Given that the image of function y = MX + 4m-3 passes through the origin, the value of M is obtained
15. If we know that the graph of the first-order function y = MX + 4M-2 passes through the origin, then M is equal to the graph of the first-order function y = MX + 4M-2 It is known that if the graph of a linear function y = MX + 4M-2 passes through the origin, then M is equal to what, and when m = 1 / 3, which quadrants does the image pass through?
16. When m_ When y = MX + m-2, the image passes through the origin
17. If the image of a linear function y = MX - (4m-4) passes through the origin, then the value of M is?
18. When we know that the image of the first-order function is parallel to the positive scale function y = - 2 / 3x, and the value is in what range through the point m (0,4) X When x is in what range, the value of this linear function is a positive number
19. It is known that the image of the first-order function is parallel to the image of the positive scale function y = - 2 / 3x and passes through the point m (0,4). Try to find the expression of the first-order function
20. It is known that the image of the first-order function is parallel to the image of the positive scale function y = - 2 / 3x and passes through the point m (0,4) If the points (- 8, m) and (n, 5) are on the image of a linear function, try to find the values of M and n