123456789 times 36 =123456789× 9× 4 = 4444404 ~
So 123456789 times 72 =123456789× 9× 8 = 888,888,808.
Please answer the fourth grade math questions in detail, thank you! ( 16 12:52:53) 27=9* 3 333,333,303
36=9* 4 444,444,404
72=9* 8 888,888,808
Please answer the fourth grade math questions in detail, thank you! (2.5. 14()()) 2x3- 1=5，5x3- 1= 14， 14x3- 1=4 1，4 1x3- 1= 122
4 1, 122.
Please answer the fourth grade math questions in detail, thank you! (1613: 5: 49)11divided by 9 =1~ ~ 2.
1 1 1 divided by 9 =12 ~ ~ 3
11111divided by 9 =12345 ~ ~ 6.
Mathematics in the fourth grade of primary school, please answer in detail, thank you! ( 1 20: 12:38) 9.08
1 m2 = 100 square decimeter = 10000 square centimeter
8 square decimeter =0.08 square meter
9+0.08=9.08
Come on, fourth grade math, please answer in detail, thank you! ( 1 1 16:36:5) 28
Mathematics in the fourth grade of primary school, please answer in detail, thank you! (1 20:38:34) Assume that natural numbers are finite.
There must be a natural number, where m is the largest.
Let m be a natural number.
The available M+ 1 is also a natural number.
And m+1>; M
This is inconsistent with the hypothesis.
So the assumption is wrong.
That is, natural numbers are infinite.
Mathematics in the fourth grade of primary school, please answer in detail, thank you! (30 1 1:42:50) Solution:
The least common multiple of 4,6 is 12.
The least common multiple of 12 and 7 is 12×7=84.
So there are 84+ 1=85 pieces of sugar.
A: There are at least 85 pieces of sugar.
Mathematics in the fourth grade of primary school, please answer in detail, thank you! (25 20:43:32) 265438+ 0.42 yuan more.
Move the decimal point of a number to the right by one place.
The new number thus obtained is 10 times of the original number and 9 times larger than the original number.
So the result is 2 1.42÷9=2.38 yuan.
Aunt Wang recorded 2.38 yuan as 23.8 yuan.
Mathematics in the fourth grade of primary school, please answer in detail, thank you! (1314:14: 58) Did you learn equations in the fourth grade? If not, analyze it like this:
Total population: 332+24=356.
The mantissa is 6, so the mantissa of the car must be 2(2*8= 16).
At 2 o'clock, the bus: 356- 18*2=320.
320÷40=8 cars
When the car is 12, 22…, it doesn't meet the question.
If you learn the equation, follow upstairs.