To solve this kind of problem, we must first understand the meaning of the problem. Make it clear (1) who is better than who; (2) Who is more and who is less, and how much is the difference (or how much is less); (3) Who knows, who asks. Draw a line chart when necessary to analyze the quantitative relationship more intuitively and clearly.

Example 1: There are 12 apples, 5 more pears than apples. How many pears are there?

Analysis: Compared with apples, there are more pears and fewer apples. Pear is a large number, apple is a decimal, and the difference is 5. Find a lot

Answer: large number = decimal number+difference number = 12+5= 17 (pieces)

Example 2: There are 12 apples, 5 fewer pears than apples, and how many pears are there?

Analysis: Compared with apples, there are fewer pears and more apples. Pear is a decimal, apple is a large number, the difference is 5. Find the decimal number.

Solution: Decimal = large number-difference = 12-5 = 7 (pieces)

Example 3: There are 12 apples, 5 more than pears. How many pears are there?

Analysis: Compared with pears, there are more apples and fewer pears. Apples are large numbers, pears are decimal numbers, and the difference is 5. decimal

Solution: Decimal = large number-difference = 12-5 = 7 (pieces)

Example 4: There are 12 apples, 5 fewer than pears. How many pears are there?

Analysis: There are fewer apples and more pears than pears. Pear is a large number, apple is a decimal, and the difference is 5. Find a lot

Answer: large number = decimal number+difference number = 12+5= 17 (pieces)

Through analysis and comparison, children will not look for meaning in literature if they understand the quantitative relationship. When they see "more", they will use addition, and when they see "less", they will use subtraction.