Add children's songs in ten minutes:
19 19 years of good friends, 2828 holding hands, 3737 really close, four steps together. Make a pair of hands in half. Look at a large number, divide it into decimals, make it ten, and add the remainder to the flow. With a large number in mind, the soldiers walked towards the package, remembering the decimal number in their hands.
One plus nine, ten tadpoles, two plus eight, ten old ducks, three plus seven, ten old hens, four plus six super, ten golden monkeys, five plus five, ten big tigers.
Think of 1 when you see 9, 2 when you see 8, 3 when you see 7, and 4 when you see 6. When you see the big corner decimal system, switch the two numbers first.
Subtract children's songs in ten minutes:
Minus nine plus one, eight plus two, seven plus three, six plus four, five plus five, four plus six, three plus seven, two plus eight, break large numbers and add decimals.
Mathematics is an interesting subject, which is not only practical, but also improves children's logical thinking ability.
Algorithm prompt:
1, two numbers add to keep the number unchanged: if one of the two added numbers increases, the other decreases, one increases and the other decreases.
When two numbers are added, one of them remains the same. If another number changes, this number will also change, and the result will change as much as the addend.
3. Add the two numbers and exchange positions to get the same number.
Add and subtract within ten minutes. Parents teach this.
1, easy before difficult
Start with addition and subtraction in ten states. It can be combined with objects that can be expressed by quantitative concepts in life. Such as apples, oranges, lychees, tomatoes, mangoes, etc. , can improve children's interest and let him know the important role of learning mathematics in life.
2. Consolidate the achievements
Parents should use all available time to ask questions to their children. As long as you have free time, you can ask questions and speak quickly, which will give your child a sense of urgency and exercise his habit of thinking quickly and improving efficiency. The addition and subtraction within 10 should make him particularly skilled before entering 20 and before transitioning to Baiwei. Not too fast, the first step on the face is gradual, and the effect is the best.