The pancake formula for fourth grade is: total time = number of pancakes x 2 ÷ number of pans available to cook in each pan x time to cook each side.

When the time does not come out as a whole number, use the rounding up method to get an approximation. If the number of pancakes is 4, and the number of each pan is only 3, according to the formula, 4 × 2 ÷ 3 × 1 about = 3 minutes.

1, when the time is not calculated as a whole number, the use of a method of approximation. Such as the number of cakes for 4, only the number of each pot for 3, according to the formula to get the total time for 3 minutes.

2, assuming that each pancake is separated from the center, each pancake will only need to cook one side, 4 double-sided pancakes become 8 single-sided pancakes, 3 at a time, the total **** need to be cooked 3 times, the last time to cook only 2 sides, the total time of 3 minutes.

3. Number of pies × number of sides of pies = total number of sides. Total number of sides ÷ number of sides processed at a time = number of groups. Number of groups × number of minutes per side = total time.

4. If a pan can cook 2 patties at a time, and a patty needs to be cooked on 2 sides, and each side takes 3 minutes, ask how many minutes it will take to cook 10 ****. 10 × 2 = 20, 20 ÷ 2 = 10 groups 10 × 3 = 30 minutes.