A simple method of 16 * 4 + 16 * 6 * 16

A simple method of 16 * 4 + 16 * 6 * 16

Original formula = 16 * (4 + 16 * 6)
=16*100
=1600

Operation law and simple calculation (by simple method) 25x44 630 * 14 640 * 16 * 4 300 * 5 + 700 * 5 66x107-7x66

25X44
=25X4X11
=100X11
=1100
630*14
=630*7*2
=90*2
=45
640*16*4
=640*8*2*4
=80*2*4
=10
300*5+700*5
=（300+700）*5
=1000*5
=200
66X107-7X66
=66X（107-7）
=66X100
=6600

26.4 * 3.6-3.6 * 16.4 how to calculate with a simple method?

26.4*3.6-3.6*16.4＝3.6×﹙26.4－16.4﹚＝3.6×10＝36.

(7 / 12-1 / 4 + 2 / 3) / 24 simple calculation method

Do it with multiplicative allocation rate

27 fish swim on paper
I seem to have seen the scene of the onlookers talking. I want to write it down

Some people said, "I have been painting goldfish for two or three years, but I'm not so fascinated. He makes the goldfish vivid. It seems that he has made the goldfish alive. He really finds a kind of beauty in painting fish. It will take at least three or four years to practice this kind of Kung Fu!" and a little girl clapped her hands happily and said, "the first goldfish

100 yuan for chicken. 3 yuan for rooster, 2 yuan for hen and 1 yuan for chicken. How to buy 100 yuan for chicken

Solution: if there are x cocks and Y hens, then there are 100-x-y chicks
3x+2y+（100-x-y)/3=100
x+y+（100-x-y)=100
The solution is x = 20, y = 8, 100-x-y = 72

Chinese 4 grade 27 fish swim to the main content of the paper

The text "fish swim on paper" describes that "I" went to Yuquan to watch fish and met a deaf mute youth. I found that his fish was lifelike, just like swimming on paper. I praised the deaf mute youth for his diligence and concentration. The author sincerely admired the disabled youth and took the deaf mute Youth's love for fish as the main clue, It is a vivid and concrete article

100 yuan for 100 chickens, 5 yuan for each rooster, 3 yuan for each hen, and 1 yuan for each chick. How many are each?
Work it out

Suppose x cocks, y hens and Z chicks (x, y, Z are integers and Z / 3 are integers) and the equation is: 5x + 3Y + Z / 3 = 100 1 x + y + Z = 100 2 from the equation "2" * 9 - "1" * 3: 4z-3x = 300 (Z / 3 is integers and "2" x, y, Z are less than 100) 3 from the equation "2" * 15 -

A 300 word essay in lesson 5 of Chinese Book Volume 2 of grade 4
People's Education Press

After Cooper drove away, his father was a little disappointed, but more happy. But I was a little sad. My mother said to me with a smile: "don't be sad for things that don't belong to us, son. We have more precious wealth, that is honesty." "is honesty also wealth?" I asked suspiciously. "You will understand it later!" my mother said meaningfully
Standing quietly on the top of the mountain, let the breeze blow my smiling cheek. The red sun slowly rises, just like the young faces of children. The clouds are around, the fog is gradually dispersing, the wind is listening to the trees, and everything is stained with gold. Everything is beautiful, everything is colorful and beautiful
One day, at dawn, I took a boat to Zhejiang, across the corner of the famous Taihu Lake in China. The sky in the East showed a red glow, and then the sun showed a little red. In a thin layer of fog on the lake, it was not at present, just like beating. So the clouds became a piece of colorful. In the blood red sunrise, everything on the lakeshore road is really colorful!