Under what circumstances is one plus one equal to two?

Let's talk about the first situation according to the situation. If you say 1 + 1 is a simple elementary school arithmetic formula, you can also score the following situations: (1) if the two "1" units are the same, the result is 2. For example, 1 meter plus 1 meter equals 2 meters, one duck plus one duck equals two ducks. (2) if the two "1" units represent the same

Xiao Jun read a 56 page story book, 14 of which he read on the first day, and 27 of which he read on the second day. (1) how many pages did Xiao Jun read in two days? (2) How many more pages did you read the next day than the first?

(1) 56 × 14 + 56 × 27, = 14 + 16, = 30 (page); a: Xiaojun read 30 pages in two days. (2) 56 × 27-56 × 14, = 16-14, = 2 (page); a: he read 2 more pages the next day than the first day

English translation
Due to the lack of time before, the subject preparation is not enough, so I prepared a new one after class, I hope you like it
First of all, I want to ask you what you know about the seabed
What do you think of the underwater world?
OK, let's take a look at some pictures
Every sentence does not have to be translated word for word, the meaning is probably the same!
Is the rich underwater world you just saw fascinating?

Pressed for time,I didn't prepare well before on this topic,so I have had another preparation after the class and I hope you will enjoy it.First ,I'd like to know about your opinion on the ocean.What i...

45.31 degrees = degrees, minutes and seconds

45 degrees, 18 minutes, 36 seconds

A cuboid glass container is 40 cm in length and 20 cm in width. After 4000 ml of water is poured into the container,
You can continue to add the details of the question here, and then completely submerge the apple into the water. At this time, the water depth in the container is 5.8 cm. What is the volume of the apple?

A cuboid glass container is 40 cm in length and 20 cm in width. After 4000 ml of water is poured into the container,
Then submerge the apple completely into the water, and the water depth in the container is 5.8 cm. What's the volume of the apple?
40×20×5.8-4000
=4640-4000
=640 CC

Decompose the natural numbers a and B into prime factors to get a = 2 * 5 * 7 * m, B = 3 * 5 * m, and the least common multiple of a and B is 2730,

2×3×5×7×M=2730
M=2730÷210
M=13

A rectangle, 4 meters in length and 5 meters in width, will increase its area by 20 square meters______ (judge right or wrong)

As shown in the figure, if the length of the original rectangle is a and the width is B, then the increased area is 5A + 4B + 4 × 5 = 5A + 4B + 20. Because a and B cannot be 0, so 5A + 4B + 20 > 20, so this problem is wrong

According to the different topics, which primary school compositions are generally divided into

(complete) proposition
Semi proposition
Free proposition

Mom, I want to say 1000 words to you

Mom, I want to say to you, mom, I'd like to say thank you first! In order to thank you for your upbringing, I also want to say, you've worked hard, in order to thank you for working hard for me. Mom, you regard me as a pearl, hold me in your hand, don't dare to hold me too hard, for fear of crushing; don't dare to hold me too loose, for fear of falling

How many hours does it take for a car to travel 42 kilometers per hour and 1000 meters per hour?

1 / 42 (hour)
A car travels 42 kilometers per hour, and it takes 1 / 42 hour to travel 1000 meters

Under what circumstances is one plus one equal to two?