Current location - Training Enrollment Network - Mathematics courses - Solve the math problems in the second grade of primary school as follows
Solve the math problems in the second grade of primary school as follows
The first cell in the upper left corner should mean multiplication symbol, right?

In this way, the number in each grid can be multiplied by two numbers in the corresponding column and row.

In this case,

The third in the second row is (20)

The fifth in the fourth line is (12)

The number (5) in the third line is 10.