4.8÷3= 1.8×0.5= 0.05×4= 0÷5.32=

13.2÷6= 33.5÷5= 3.6÷ 18= 0.54÷2.7=

Second, judgment (tick in brackets means correct, and x means wrong).

1.5.095 accurate to 0.0 1 is 5. 10. ( )

2. The approximate value of quotient is usually rounded. ( )

3. When seeking the approximate value of quotient, it is generally necessary to divide by one decimal place more than it needs to be kept. ( )

Third, complete the following questions as required.

324.57÷7≈ (figures are reserved to two decimal places) 7.525 0.38 ≈ (figures are reserved to two decimal places).

9÷ 1 1≈ (number with three decimal places) 32 ≈ 6 ≈ (number with integers)

Fourth, column calculation

The product of two factors (1) is 0.226, one of which is 1.5, and what is the other factor (the number should be kept to two decimal places).

(2) Divide 15.36 into 12 parts, each part is a multiple.

Verb (abbreviation of verb) application problem

(1) Cut a 60.3m long steel pipe into 12 sections with the same length. What is the average length of each paragraph? (Numbers are reserved as integers)

(2) There is a batch of goods, and it is planned to transport 22.5 tons per hour, which can be shipped in 7 hours. It actually takes only 5.5 hours to complete the task. How many tons can it actually transport per hour? (Figures shall be kept to two decimal places)

I'll fill it out.

43.9095 The reserved integer is (). 6.03 is accurate to the tenth place ().

7.98 Keep one decimal place is () 5.897 Keep two decimal places is ()

Second, when calculating with vertical lines, the number of decimal places.

8.85÷ 13 0.72÷0.7 3. 18÷2.8

Three, when using vertical calculation, the number to retain two decimal places.

3.8 1÷7 246.4÷ 13 7.09÷0.52

Fourth, solve practical problems.

1. The counselor made the performance costume with 100 meter fabric. On average, each performance costume uses 1.2. How many sets can they make?

2. Fruit shop Uncle Li wants to put 30 Jin of Sydney into some boxes, each box can hold up to 6.5 Jin of Sydney. How many boxes do you need to prepare?

Xiaoming spent 4 minutes doing 35 calculation problems. How long does it take on average to do each problem? How many problems can he do in a minute? ?