1, oral example 1

5+7= 12、8-3=5、 10-8=2、6×9=54、8×8=64、9×3=27、7×6=42、4×7=28、9×6=54、6×8=48、 10+5= 15、8-4=4、6+8= 14、3×9=27、7×4=28、5×8=40、8×9=72、6×7=42、4×5=20、7×9=63。

2. Example 2 of oral calculation

9+6= 15、 12-5=7、 15-9=6、4×6=24、7×5=35、6×6=36、8×5=40、3×8=24、9×4=36、5×7=35、 1 1+8= 19、 13-6=7、 1 0+7= 17、 5×9=45、6×5=30、7×7=49、4×9=36、8×7=56、 12-7=5、 15-8=7。

3. Example 3 of oral calculation

14-6=8、 16-7=9、 1 1+9=20、9+8= 17、 13-8=5、 15-7=8、4× 10=40、7×3=2 1、6× 10=60、 8×3=24、 12+6= 18、 17-9=8、 14-5=9、 13+5= 18、 10+8= 18、5× 10=50、6+9= 15、8×4=32、9×5=45、7×8=56。

The benefits of practicing oral arithmetic

1 to improve the calculation speed.

Through oral arithmetic practice, you can quickly improve the calculation speed. Oral calculation is a fast mathematical calculation method, which enables students to get answers in a short time, thus improving their efficiency in solving mathematical problems.

Step 2 enhance your attention

Oral calculation requires students to concentrate and calculate quickly and accurately. This kind of exercise can enhance students' attention and concentration, and improve their learning ability in other disciplines and life.

3. Cultivate mathematical thinking

Oral calculation is not only a simple calculation, but also the embodiment of mathematical thinking. Through oral arithmetic practice, students' mathematical thinking can be cultivated, and mathematical problems can be better understood and solved. At the same time, oral arithmetic practice can also enhance students' logical reasoning ability and help them better understand mathematical concepts and principles.