3rd Grade General Subjects Trivia Questions And Answers

The expression 100 + 100 - 100 + 100 can be simplified by combining like terms:
100 + 100 - 100 + 100 = 200 - 100 + 100
First, we can combine the addition:
200 - 100+100 = 200

The given expression involves addition and subtraction operations. Starting from left to right, we first subtract 100 from 530, resulting in 430. Then, we add 400 to 430, giving us 830. Finally, we subtract 100 from 830, which equals 730. Therefore, the correct answer is 730.

Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create their food and release oxygen. This fundamental science concept is often introduced in elementary school biology.

Photosynthesis: This is the correct answer. Photosynthesis is the process by which plants use sunlight, carbon dioxide, and water to produce glucose (sugar) and oxygen. It is how plants make their own food.

The keyboard is where you type in a computer. It is an input device that allows the user to input text and commands into the computer system. The other options, such as CPU, mouse, and monitor, are not used for typing. The CPU is the central processing unit that processes data, the mouse is used for pointing and clicking, and the monitor is the display screen. Therefore, the correct answer is keyboard.

A monitor is a device that allows you to see images and pictures on the computer. It is an output device that displays the visual output from the computer's graphics card. The monitor usually consists of a screen, which can be either LCD or LED, and it is connected to the computer via a cable. The images and pictures are displayed on the monitor's screen, allowing the user to visually interact with the computer and view the content being displayed.

The given expression is 200+200-50. First, we add 200 and 200, which gives us 400. Then, we subtract 50 from 400, resulting in 350. Therefore, the correct answer is 350.

There are 8 planets in our solar system. This includes Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Pluto was previously considered the ninth planet but was reclassified as a dwarf planet in 2006.