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People's education printing plate third grade second volume mathematics matching exercise book unit 2 comprehensive exercise answer
Answer: (1) I can calculate.

1、40 340 80

300 0 0

93 900 300

0 9 0

2、25 76 52

130? 3 140? 4 104

The order of the answers is from left to right.

= 159 ? three

= 53

= 144 ? nine

= 16

= 57 + 294

= 35 1

4、90 60 50

80 20 60

(2) I will change it

203 270 00 End

(3) I will list

1、639 ? 9 = 7 1 (piece)

2、728 ? 4 = 182 (times)

3、844 ? 6 = 140? four

(4) solving problems

1、832 ? 4 = 208 (persons) A: There are 208 persons in each batch on average.

2、785 ? 6 = 130 (box)? 5 (bottles) A: It can hold 130 cases, and there are 5 bottles left.

3. Is the number of boxes sold every day 8? 4 = 2 (box)

How many units are sold every day? 30 = 60 (branch)

4 days * * * Money: 8? 30 ? 2 = 480 (yuan)

Answer: 60 pieces are sold every day on average. Uncle Li sold 480 yuan in four days.

4、5 ? 6 = 30 (branch) 150? 30 = 5 (box)

These pens can be packed in five boxes.

5、(939 - 4)? five

= 935 ? five

= 187 (tree)

187 trees were planted last year.

6. Miss Liu: 372? 4 = 93 (pieces)

Xu teacher: 4 10? 5 = 80 (pieces)

Teacher Liu Can can type faster.