First, write directly.

3×5= 15 23- 14=9 15+39=54 36÷6=6

56÷8=7 50-26=24 7×8=56 5×9=45

9÷9= 1 80-45=35 72÷9=8 30-28=2

25÷4=6。 25 48÷6=8 36÷7=36\7 4×6=24

Second, recursive equation calculation.

35+ 14÷2 78-36+ 14 25-36÷4 3×6+48

=35+7 =42+ 14 =25-9 = 18+48

=42 =56 = 16 =66

56-6×8 15+3×7 (36- 12)÷8 56÷(2×4)

=56-48 = 15+2 1 =24÷8 =56÷8

=8 =36 =3 =7

Third, solve the problem.

1, with an average of 55 strawberries in 8 plates. How many strawberries can you put on each plate? How much is left?

55÷8=6 ... seven

A: Put eight on each plate, and there are seven left.

2. 39 students from Class Two and Class Two of Bilingual Experimental Primary School went boating. Each ship can accommodate up to 4 people. How many boats should we rent at least?

39÷4=9......3

A: At least 65,438+00 boats should be rented.

A piece of cloth is 43 centimetres long, and it takes 8 centimetres to make a skirt. How many skirts can you make at most?

43÷8=5......3

You can make up to five skirts. Fourth, know the route.

Fourth, the direction of understanding:

1. The shop is on the () side of the grove, and Xiaohong's home is on the () side of the school.

2. The threshing floor is on the () side of the store, and the grove is on the () side of Xiaohong's house.

Xiaohong's school route is: from home to the threshing floor and from the threshing floor.

Walk to the Woods, walk from the Woods to the small shop, and walk from the small shop to the school.

Xiaohong's route after school is: from school to small shop, from small shop to.

Go to the Woods, from the Woods to the threshing floor, from the threshing floor

Go to Xiaohong's house.