Hi! Hello, friends! I am Teacher Qiaojie Fangyuan. Today I share classic easy-to-test questions with absolute value. It is the National Day holiday, which is also a happy time for parents and children to get together. While playing, are you also very anxious? Because the monthly exam will be after the holiday. To this end, I specially designed holiday homework: classic easy-to-test questions with absolute value to help children improve their grades quickly. These questions are all frequently tested and are relatively basic, which means you must do it correctly.
do it first and then check the answers well!
Do first and then check the answers well!
Do first and then check the answers well!
answers are as follows:
1.-(-5)=5, |-5|=5
2.±2, 3, 0 or 2
3. Non-positive
4.-2/3, 2/3
5. Number the distance from a to -5 on the number axis .
6. Large, 9
7.a=2, b=3, c=4, original form=11
8.±1, ±5
9.4035
10.±2, ±8
11.-1, -7
12.b＜-a＜a＜-b
13.4 or - 8
14.17/90
15.a=b or a+b=0
Question 4: The solution to this type of equation is zero-point segmentation method . For the above category, the unknown coefficient is 1 and the two absolute values are added relationships, which can be solved by the geometric meaning of the absolute value. |x+1| represents the distance from x to -1 on the number axis, and |x+3| represents the distance from x to -3 on the number axis, so |x+1|+|x-3|=8 represents the distance from x to -1 and x to 3 on the number axis, and the sum of the distance from x to 3 is 8. This point is obviously impossible between -1 and 3 (only 4 in the sum of -1 and 3), so the result is -3 or 5.
Question 6, Question 7 has videos. Friends can search the collection " Rational Number " on the headlines to watch.
For the answer to the interview question, have you done the right answer? If you have any questions, you can raise them in the comments and let us discuss them together. Follow Teacher Qiaojie Fangyuan, see you next time! Bye-Bye!
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