Mom Circle
Fill in the blanks. 2. If you don't know the result of the special formula, it is recommended to calculate the result first and then add the number of 0 at the end.
4. "1" can be regarded as any fraction with the same numerator and denominator.
11. The number of volleyball players The number of football repeaters The number of people who participate in these two activities, and then subtract this number from the total number of people, which is the number of people who participate in the chorus.
12. This question is actually divided into two situations: the same side and different sides.
Judgment section. 2. Folding in half is the average score, and this question is correct.
4. Through translation, it can be seen that Figure 2 has two more vertical lines than Figure 1, so the circumference of Figure 2 is 2.
5. Correct time relationship: departure time, time and arrival time.
Select the section. 2. This question examines two knowledge points: People who have less left drink much more. Same as the numerator fraction, the fraction with the smaller denominator is larger.
4. This question examines three knowledge points: the dividend, the divisor x the quotient, and the remainder. The divisor is the smallest, and the dividend is the smallest. The minimum divisor is the remainder of 1.
Practical part. When using fractions to represent the shaded parts of a graph, first count the average number of parts of the graph and the fraction of the shaded part, the number of shaded parts is the numerator, and the total number of copies of the figure is the denominator.
Work something out. 1. (1) First according to the actual number series of calculations, then estimate (estimate the number into ten or hundreds), and finally compare. ）
2) There must be a comparison step for the question of "whether it is enough".