﹙6 1.5-4 1.5﹚÷2
=20÷2
= 10 (kg)
Bottle weight
4 1.5- 10×3
=4 1.5-30
= 1 1.5 (kg)
A: The weight of a glass of water10 kg; This empty bottle weighs 1 1.5 kg.
School-based training plan and scheme for primary schools 1
I. Guiding ideology
In order to further promote the curricu
The biggest trouble in primary school mathematics investigation is cross multiplication. In the primary school mathem