Oral arithmetic is the basis and key to learn mathematics well. If you don't do well in math, it will seriously hurt your self-confidence. How to teach addition and subtraction other than ten? Fortunately, I found a children's song and added up to ten songs. Finding the right method gets twice the result with half the effort. First, let her write down ten songs and ten formulas.
Collect ten songs
19 19 good friend
2828 shoushou
3737 is so sweet
Use 4646
55 is a pair of hands.
Make up ten formulas:
Look at large numbers and divide by decimals.
Add up to ten and add up the remainder.
Break ten small formulas
+minus 9 plus 1
Ten MINUS eight plus two.
Ten MINUS seven plus three.
Ten MINUS six plus four.
Ten MINUS five plus five.
If you follow this workbook page by page, the steps will be gradually simplified and the speed of addition and subtraction will be improved.