A simple method of addition operation
1, fast estimation: align the numbers according to ten digits and one digit, only calculate the sum of ten digits and one digit, and then add the results.
2. Carry addition: When the sum of single digits is greater than 9, carry to ten digits for operation.
Second, the simple method of subtraction operation
1. Borrowing subtraction: when the unit of the minuend is less than the unit of the minuend, borrow from the ten digits. After subtracting ten digits, subtract one digit.
2. Quick estimation: align the numbers according to ten digits and single digits, only calculate the difference between ten digits and single digits, and then subtract the results.
Third, the simple method of multiplication operation
1, fast multiplication 10, 100, 1000: add the corresponding 0 to the end of the multiplicand to get the result.
2. Factorization method: decompose a number into products of several factors, and then multiply them.
Fourth, the simple method of division operation
1, quickly divide by 10, 100, 1000: you can get the result by removing the corresponding 0 from the end of the dividend.
2. Rounding method: multiply or divide both the divisor and the dividend by 10 until the dividend becomes easily divisible.
Making skills of handwritten newspaper
1. Beautiful layout: Choose an appropriate layout, use clear titles and subheadings to ensure that the content is organized and readable, and please keep it neat and symmetrical.
2. Effective color matching: Choose TINT suitable for the theme and pay attention to color matching. Highlight the key content with a few bright colors to avoid visual confusion caused by too many colors.
3. Reasonable font selection: Choose an easy-to-read and neat font and keep the font size consistent. The style of fonts should be consistent with the theme, and avoid using too fancy or illegible fonts.
4. Use headlines and keywords: Use attractive headlines and highlight keywords and important information in handwritten newspapers so that readers can quickly grasp the theme.
5, the use of pictures and charts: insert clear, high-quality pictures and charts to support your content, they can express your views more intuitively, improve the readability and attractiveness of handwritten newspapers.
6. Diversified data integration: Use different forms of data, such as text, pictures, charts and illustrations, and cite influential data and facts to enhance the credibility of the content.