When Xiao Zhang calculates the division with remainder, he takes the divisor 113 as 131, and the result quotient is 3 more than the original, but the remainder is exactly the same, so the remainder of the problem is () A. 、4B. 5C. 6D. 7

When Xiao Zhang calculates the division with remainder, he takes the divisor 113 as 131, and the result quotient is 3 more than the original, but the remainder is exactly the same, so the remainder of the problem is () A. 、4B. 5C. 6D. 7

（131-113）÷3，=18÷3，=6，113÷6=18… A: the remainder of this question is 5

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Fill in the blank box with the appropriate number
□□.3
×□□□
▔▔▔▔▔
7□□
□□□□
▔▔▔▔▔▔
2 □□.67□

□□.3 77.3
×□□□ × 3.01
▔▔▔▔▔ —————
7□□ —→ 773
□□□□ 2319
▔▔▔▔▔▔ —————
2 □□.67□ 232.673
analysis:
1. Because the highest bit of the product in the first step is 7, the single bit of the second factor can only be 1
2. Because the product in the second step is two less bits than that in the previous step, the tenth bit of the second factor is 0
3. Because the highest order of the product in the third step is 2, the hundredth of the second factor can only be 3

Some intellectual challenges
A fraction of eleven divided by five is a fraction of two
A number of ninths divided by a number of fifths is twenty-five out of twenty-seven

It should be right to do it on the spot
Five out of nine divided by three out of five equals twenty-five out of twenty-seven
Two out of eleven divided by five is two out of fifty-five

Challenge intelligence
People's reaction power is 0.2 seconds, and people's escape time from snakes and crocodiles is 0.2 seconds and. 25 seconds. But why do crocodiles attack fast?

Why? Another way of thinking, they attack you. It takes you 0.2 seconds to evade the snake attack, but it takes you 0.25 seconds to evade the crocodile attack, which takes 0.05 seconds more than the snake attack. It can also be understood as: the same attack, the crocodile attacks you 0.05 seconds more than the snake attack, so the crocodile attack is faster! --

What is the mixed operation of four fractions?

That is to say, the formula with fraction and addition, subtraction, multiplication and division is called fraction four mixed operation

Let's talk about the operation order of four mixed operations of fractions

The operation order of the four mixed operations of fraction is the same as that of the four mixed operations of integer. They are multiplication and division first, then addition and subtraction, and those with brackets first

How to summarize the operation order of four operations in simple words?

First multiply and divide (from left to right) and then add and subtract (from left to right). If there are brackets, count the ones in brackets first, first the small brackets (), then the middle brackets [] and then the curly brackets {}

What is the operation order of four integer operations?

First solve the brackets, then the brackets, then the braces, and then calculate according to the order of "do multiplication and division first, then add and subtract"

Multiplication is a simple operation to find several identical () and the inverse operation of multiplication

Multiplication is a simple operation to find several identical (sum of addends). The inverse operation of multiplication is division

The meaning of multiplying a decimal by an integer is the same as that of () multiplication, which is a simple operation to find the sum of several (). The meaning of multiplying a number by a decimal is the same
It's for this number ()

The meaning of multiplying a decimal by an integer is the same as that of multiplication. It is a simple operation to find the sum of several (same decimals). The meaning of multiplying a number by a decimal is to find the number of (tens, percentages, thousandths, etc.)
It should be like this