(2) Calculate 57-9=□, which can be calculated as follows:

(3) 1 Zhang 100 yuan can be exchanged for () Zhang 50 yuan; 1 piece 100 yuan can be exchanged for () pieces of 20 yuan.

(4) 1 one hundred yuan and twenty or fifty yuan is () yuan; Five Zhang Yiyuan and three twenties are () yuan () jiao.

(5) Xiaohong bought two pens for 20 Qian Qi dollars and 8 dollars. The little red flower lost () yuan, so it should be returned.

(6) 1 yuan = () 5 jiao = () yuan.

70 points = () Angle 6 yuan = () Angle

2. Fill in ">", "<" or "=" in the box. (9 points)

1 yuan 08 09 points, 2 yuan 06 points, 3 yuan 55 points and 5 points.

38+6○42 46+7○83—30 50○59-5

5+45○4+45 78-8○70+2 87-6○85-6

Please tick "√" in the box after the correct answer. (6 points)

(1) It is estimated that the formula above 70 is:

38+29 97-24 33+35

(2) Among the following three figures, the figure closest to 60 is:

50 64 58

(3) The price of one is:

5 yuan, 5.5.

4. See who can be right. (22 points)

59+5= 38-9= 7+54= 65-40=

46-9= 26+60= 56+4= 53-4=

4+27= 46-40= 37+6= 75-7=

67+5= 85-5= 40-3= 54+9=

36+40-8= 70-6-8= 35+6-9=

45+40+7= 90-30+9= 80-7+9=

5. Use vertical calculation. (16)

26+34= 65— 19= 7+58= 90—43=

6. Look at the picture and calculate, and fill in the appropriate numbers in (). (8 points)

7. Solve problems in life. (25 points)

(1) Mom bought the following items in the supermarket and just spent 10 yuan. (6 points)

① _______________________________

② _______________________________

③ _______________________________

(2)

(3)

How many people got off at the station? (5 points)

8 yuan 13 yuan 10 yuan

Xiao Fang took one to buy a football on Sunday. How much should he get back? (3 points)

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ A should get _ _ _ _ _ Yuan back.

(2) How much does it cost to buy these three commodities? (3 points)

_ _ _ _ _ _ _ _ _ _ _ _ A: A * * * needs _ _ _ yuan.

The money is only enough to buy a badminton racket. I guess there are five dollars at most.

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ (2 points)

What other math questions do you ask? ( 1)

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