How to estimate the math homework 198X6?
200? 6= 1200
How to estimate 8 1x4 8 1x4 for math homework?
≈80×4
=320
Hello, this question has been answered, if you are satisfied.
Please click on "Get Answer" in the lower right corner.
When estimating 198x6, how should 198 be calculated ()? When 198X6 is estimated, 198 can be regarded as (200).
When calculating the result accurately, 198×6=(200-2)×6.
=200×6-2×6
= 1200- 12
= 1 188
43.8x 1.9 estimated value 44X20=880
Write a math composition in the nearest supermarket.
"Home", a seemingly simple glyph, has different views on different people, and so do I, from turning a blind eye to my other shore, my safe haven, my belief pillar, and even my study sustenance. It all started when I left home.
My home is in Shenquan Town, which is a quadrangle, neither too big nor too small. There are seven people in my family, a grandmother in her nineties, an amiable father, an ingenious mother, a simple and honest brother, two beautiful sisters and, of course, a naughty boy, which constitute my so-called "home" and make me turn a blind eye. Today, I'm leaving to study in Jinghai. To be honest, I should be happy! But my heart is heavy. However, if you are in a mood, you will always go to the sea of tranquility.
As time went on, I got on the bus-the way back to school. In the car, I leaned against the window and felt worse and worse. Looking at the trees by the roadside, I was lost in thought: I have left home now, leaving that long-winded place, and I can't hear my mother's constant "chanting" anymore. I should be very happy. Why is it so heavy? I returned to the dormitory with questions.
——
Late at night, I woke up from my dream and found my eyes moist. I opened the window, and the night outside was so beautiful. The disc is like the moon, and the funny stars make it so bright. Suddenly, a familiar voice disturbed my thoughts, and the residents downstairs were drinking tea and chatting. This reminds me of my father. I remember my father drinking tea every day and yelling at us every time. I can't help but burst into tears when I think about this. I think of my home. I don't know if my father is sleeping peacefully now, or staying up late in the study to draw pictures and make a budget. Where's mom? Did you fall asleep, or did you comfort your father at midnight? Is my sister hiding under the covers reading a novel? ..... countless thoughts poured into my forehead. Suddenly, I cried. Tears kept spinning and falling in my eyes like broken beads. I realized that I was homesick. Thought of here, tears gather more and more. It seems that even if I finish smoking paper towels, I can't stop thinking about my family. Even I really want to drop my studies and pack my bags and go home. but I cannot do it. My home has been hollowed out for me to study. Now I can only keep reading, and the more I read, the better. I can't go home until I break through my limits, fill my home with knowledge and wealth and make it rich.
I will turn those tears into sweat and make my own contribution to this family. Home, you are the pillar of my learning belief. Without you, I wouldn't study so hard.
How to do math homework quickly? First of all, you should concentrate, and then you should have a certain mathematical foundation.
Estimate first and then calculate the formula. How to estimate 73x9? How to estimate: 70* 10=700?
Calculation: 73*9
=73*( 10- 1)
=730-73
=657
Mathematics in Grade Four, estimated .231x30 ≈ 7.
.23 1×30=2.3 1×3
2.0×3=6
2.5×3=7.5
Estimate. 36 1 ÷ 62 ≈ 352 ব 49 ≈ 52× 60 ≈ 198× 59 ≈ 36 1 ব 62 ≈ 360 ব 60 = 6.
352÷49≈350÷50=7
52×60≈50×60=3000
198×59≈200×60= 1200;
So the answer is: 6,7,3000, 1200.
It is estimated that 43x6=, 67x9=, 20 1x5=? 43×6≈250
67×9≈600
20 1×5≈ 1000