27-20= 4 1+20= 36- 10= 57-2=

20+57= 85-60= 95-70= 3+45=

48+6= 7+66= 3+ 19= 4+38=

67-9= 65+3= 6+ 14= 46-5=

3+64-20= 100-70+7= 98-5-4= 26+30+9=

32+5+40= 40+6-5= 46-5+30= 100-80+6=

Fill in the blanks. 42%

1, one addend is 43, the other is 7, and the sum is ().

The minuend is 77, the minuend is 6, and the difference is ().

2、 +9 -5 +6 -3 → → → →

Please fill in >,< or = in the box.

63+7 69 98-80 8 64-40 48- 10 55-5 55+5

58 49+8 82+9 8 1 99-8 80+ 1 1 38+40 40+ 18

4. 1 The number greater than 69 is (); 1 The number less than 60 is ();

76 is larger than () 1 and smaller than ()1;

47 is greater than 20 (), which means () is less than ().

5. Put the six numbers 27, 40, 68, 9 1, 15, 76 in descending order.

.

6. Fill in the appropriate numbers in the box.

42 >； & gt80 & lt40 & lt& lt

7. Think about the hundred tables and try to fill them out again.

8. Grandpa is more than 65 and less than 72, and it is an even number. Grandpa may be () years old.

9. There were some birds in the tree before, and 60 flew in. There are 96 birds now. There used to be a bird.

10, can draw () different rectangles.

Third, draw a picture. (Divide the parallelogram into two triangles and four triangles) 4%

Four, 8% 70 points = () Angle 3 yuan = () Angle.

3 cents and 4 cents = () cents and 5 cents and 20 cents = () yuan.

50 yuan = () Zhang 5 yuan 1 yuan = () angle = () points.

25 Angle = () Yuan () Angle 7 Yuan 3 Angle = () Angle.

Fifth, solve the problems in life. Thirty percent

1, Xiaoming has 10, 18. The little red family has 20 and 25.

1. How many are Xiaoming and Xiaohong?

(2) How much more than Xiaohong's family?

Students must make 45 sandbags. I have done some, and there is still 10 left. How many did you make?

= A: I have already done ().

3. Sports room football loan 32, with 6 left. How many footballs are there?

Answer: There used to be () football in the gym.

Schoolbag 34 yuan

Watercolor pen 26 yuan

Pencil box 8 yuan