I asked my father, "How much did mom spend on these two clothes?"
Dad said, "You want to know, do the math yourself!" " The original price of this coat is 350 yuan, and now it's 20% off. The original price of this pair of trousers is 260 yuan, with a 60% discount. You can calculate how much money it is. "
It's not that easy for dad to beat me.
"I'm sure I can figure it out!" I looked up at my father and said.
"350 yuan, a twenty percent discount is 350 divided by 10 and then multiplied by 8. What is it? " I silently thought to myself, "Oh, it's worked out, that is, 35 times 8 to get 280 yuan. Where are the pants? A 40% discount on 260 yuan is 260 divided by 10 and then multiplied by 6 to get 156 yuan. The shirt and trousers add up to 280+ 156, which is equal to 436 yuan. "
"One * * * is 436 yuan. Right? "
"Well, my daughter is so smart!"
"Of course, tiger father has no dog daughter!" I am proud to say.
"Come on, don't loquacious. This question is simple. I'll test you again. "
"No problem, just say it."
"If mom's coat is 355 yuan, 30% off, and pants are 265 yuan, 50% off, how much is it?"
"Well, these figures are not even ten, which is really a bit difficult." I thought for a moment and calculated quietly, "The coat is 355 yuan, with a 50% discount, which can be said to be seven tenths of 355. Multiplying 35.5 by 7 equals 248.5 yuan, and pants are 265 yuan, with a 50% discount, which is five tenths of 265, which is half price. Dividing 265 directly by 2 is equal to 132.5 yuan. Then use 248.5+ 132.5=38 1 yuan. "
"One * * * is 38 1 yuan!" I answered loudly.
"yes! It seems that it is really difficult for you. However, dad, your operation just now seems a little troublesome. Do you want to learn a simple method? "
"Of course, what method, quick say, quick say!"
"Well," the father said unhurriedly, "you can multiply the original price by a few tenths with a few discounts. For example, if the coat is discounted by 355 yuan, it can be multiplied by 0.7, and the pants are discounted by 50%, which can be multiplied by 0.5. "
"ah? Wrong, how to use multiplication, the number will become smaller? " I'm dubious.
"You haven't learned the multiplication of decimals. If you don't believe it, you can do it with a calculator. "
"Well, all right." I calculated it with my calculator, and it's true.
"How's it going? Is dad good at math? " Dad said proudly on the side.
Yes, there is a college question in the small discount!