Math topic in the second grade of primary school: Little monkeys share peaches happily. Two out of every seven, five out of every eight. How many little monkeys are there at least? How many peaches are there at least? How to order? Monkey: (win+lose) ÷ (difference distribution) =(2+5)÷(8-7)=7 (only)

Peach 7×7+2=5 1 (each)

or

The little monkey divided the peaches, and there were two left for each 7, and five for each 8. If there are five, plus the original two, one * * * is seven; One for each little monkey is just enough, which means there are 7 little monkeys; Then, the peach is 7 * 7+2 = 51;

Calculation formula:

Number of monkeys = 2+5 = 7;

Peach number =7*7+2=5 1:

Definition:

Addition: the operation of combining two numbers into one number.

Subtraction: when two addends and one of them are known, the operation of finding the other addend.

Multiplication: the operation of finding the product of two numbers.

Division: the operation of finding another factor by knowing the product of two factors and one of them.