3km 6m - 2km 4m 5cm= Please let me know if you know the answer

3km 6m - 2km 4m 5cm= Please let me know if you know the answer

3km6m-2km4m5cm = 3006m-2004.05m = 1001.95m = 1km1m 9decim5cm

6m 3cm = () M

6.03. One meter = 10 decimeters = 100 cm = 1000 mm

Is someone here? How much is 5.7 cm + 45 cm

5.52M

How many meters is 45 cm

0.45M

Fill in the sign in the formula "123456789 = 100" to make it true
Pay attention not to change the order of numbers. If necessary, you can combine several numbers into a number, or add a minus sign to make it a negative number. Help! Thank you!

[(- 1) + 23 + 4)] × 5 - (6 + 7 + 8 + 9) = 100 reduction: 26 × 5-30 = 100

Formula 1-2 + 3-4 + 5-6 + +1999-2000 + 2001 quick calculation and skillful calculation

1-2+3-4+5-6+…… +1999-2000+2001
=（1-2）+（3-4）+（5-6）+…… +（1999-2000）+2001
=（-1）+（-1）+（-1）+…… +（-1）+2001=-1000+2001=1001

1+2+3-4+5+6+7-8+9+10+11-12+…… -How much is 96 + 97 + 98 + 99-100? Method! Formula!

1+2+3-4+5+6+7-8+9+10+11-12+…… -96+97+98+99-100 = (1 + 100) * 100 / 2 - 2 * 4 * (1 +25) * 25/2 = 101 * 50 - 2 * 4 * 13 * 25 = 5050 - 2600 = 2450

A very simple question 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 +... + 98 + 99 =? What's the formula?
What's the formula for counting?

（1+99）*99/2=4950
(first + last) times the number divided by 2

What is the general formula of 1-2 + 3-4 + 5-6... + 99-100?

(-1)^(N+1) *N

What is the integer part of the result of this formula?
PS: it's better to have a detailed explanation. Thank you all!

10/9+100/99+1000/999+······100000000/99999999
=1+1/9+1+1/99+1+1/999+------+1+1/99999999
=8+(1/9+1/99+1/999+------+1/99999999)
Because 0