"Replacement" Problem Solving Strategies PPT Courseware

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"Replacement" Problem Solving Strategies PPT Courseware

How else can the relationship between the two quantities in each of the following conditions be expressed?

1. The capacity of a microwave oven is 1/10 of that of a washing machine. The capacity of a washing machine is 10 times that of a microwave oven.

2. There are 30 more apple trees than pear trees. There are 30 fewer pear trees than apple trees.

The unit price of pens is 6 times that of pencils.

The money you buy for 1 pen can buy ( ) pencils.

The money you spend on 3 pens can buy ( ) pencils.

The money you buy for 12 pencils can buy ( ) pens.

Lihuazhuang Primary School has three flower gardens and three nurseries of equal area, totaling 480 square meters. Each flower bed is 10 square meters larger than each nursery. What are the area of ​​each flower bed and each nursery in square meters?

Flower garden: (480 +3x10)÷(3+3)=85(m2)

Nursery: 85-10=75(m2)

Xiaoling bought 3 identical notebooks and 9 identical exercise books for 33 yuan. The unit price of the notebook is 3 yuan more than the unit price of the exercise book. How much are the unit prices of the notebook and the exercise book?

method one:

Replace your notebook with an exercise book

33-3 × 3= 24 (yuan)

24÷(9 + 3) = 2 (yuan)

2+3= 5 (yuan)

Method Two:

Exchange exercise books for notebooks

33+9 × 3= 60 (yuan)

60÷(3 + 9) = 5 (yuan)

5 - 3= 2 (yuan)

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Update Time: 2024-11-14

This template belongs to Mathematics courseware Jiangsu Education Edition Sixth Grade Mathematics Volume 1 industry PPT template

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