If you move the decimal point two places to the left, the resulting number is 0 891 smaller than the

2)a=9/40 b=3/8

3) 800*10 (1-3 7)=14000m Team A repairs 800 meters per day, Team B repairs 1000 meters per day, and Team B repairs this road more than 1 2 if Team B repairs it first, so Team A repairs it first.

4)78 2,3,13 There is no common divisor for a number, only a divisor, and the common divisor is at least two numbers.

5) (50-20) 60*360°C=180°C; degrees = 15 degrees.

a=8/5，b=3/8

14,000 km.

This number is 78, 2*39, 6*13, 2*3*13, the minute hand turns 180 degrees, and the hour hand turns degrees.

Isn't it a child's summer homework??? It's a blessing to be able to find answers online

But next time, remember to give more bounty points

The answer to the first question is 9 is very simple, x-x 100 = two a: 9 40 b: 3 8, 2 yuan 2 equations.

Three 14000, B is 3 7, A is 4 7, A has done 10 days, that is, 8000, 8000 divided by 4 7.

4. Have you not finished this question, the common divisor should be a group, and his decomposition prime factor should be 13 (you can directly take 78 to decompose, 78 divided by 2 is 39, 39 divided by 3 is 13).

5 minute hand 180 (30 every 5 minutes, half an hour passed from 20 to 50) hour hand 15 (2 to 3 only 30, half an hour is only half).

After moving the decimal point of a number to the left and guessing two places, it is reduced to 1 100 of the original Jing Hong, so the original number is 100 times the number of the reduced number.

Minified number =

So the original number is 12

Move to the left hall and move two people, that is, a hundred times smaller.

Answer: The original number is 1

A: The original number was.

Solution: Move the decimal point of a number to the right by two places, which is 100 times larger, which is more than the original (100-1) = 99 times, (the original is a multiple of 1). Find out what it is.

Hope it helps!

Be. Hope it helps.

When the decimal point of a number is moved to the right by two places, it expands by 100 times, which is 99 times more than the original number =

Let the original number be x

Move the decimal point two places to the right, i.e. the number becomes 100 times larger.

100x-x=

x = if x is not set, it is the increase in the number of multiples, and the single multiple is obtained, which is the original number.

Let this original number be x first, and the decimal point will become 100x after moving two decimal places to the right, so you can list the equation if you have a problem: 100x-x = solve the equation to get the original number x=

When you move the decimal point of a number to the right by two places, the resulting number is larger than the original number, which is 99 times the original number, so the original number is.

"Moving the decimal point of a number to the right by two places" is equivalent to making this number a hundred times the original one, and a hundred times the number is greater than this number, then ninety-nine times the number is equal to, so this number is.

The decimal point is moved to the right by two digits by a factor of 100.

So yes this decimal is.

Analysis: "One move to the left" is 10 times smaller. The reduced number is 1/10 of the original number. ===

A decimal number, if you move it to one place to the right sidekick, it is more than the original number, and Lu Heng grinds to find the original number is (

The difference divided by ten minus one is equal to.