“I don’t know where the 10 is. Let’s just subtract 179 from 202. Nine
from two is three. You carry one and add it to seven. Eight from zero is two. The answer is 23.”
“We can’t do it that way. We have to use the 10.”
“Well, I’m going to call your teacher to see how she subtracts 179 from 202.” Over the telephone, I said that I was having a bit of trouble with the homework she had given to my daughter. The teacher said, “In the right-hand column (栏 we have units of one. The two in that column counts for two ones. The zero in the center counts for zero tens. The two in the left-hand column counts for hundreds . Are you clear?” But I didn’t think I was clear.
I hung up and found my way to the medicine box. My head was now hurting. I started putting pills of medicine into my mouth. “How many did you take?” my wife asked. “I took one and then I took another…I know one and one was two, but don’t ask me what it is now.” 11. The daughter wanted ______ the other day. A. to give her father a lesson B. to show how difficult math was
C. her father to phone her teacher
D. her father to help her with her homework 12. Which of the following sentences is not true? A. The father had a different way to do the math problem.
B. The father couldn’t do his daughter’s homework. C. The daughter couldn’t understand her father’s way. D. The daughter had some trouble doing the math problem.
13. From what the teacher said, we know that the word “units” means ______ here. A. whole numbers less than 10 B. whole things
C. groups of lessons
D. the smallest numbers 14. What the teacher said made the father _________. A. angry B. worried C. sad
D. tired 15. Can you guess what would happen next in the story? A. The father would go to school and begin to learn math. B. The father would become very ill and have to take more medicine. C. The father would never do his daughter’s math problems again. D. The father would go to the school and fight with the teacher.
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