Question

Як обчислити приклад 320+ 90 способом округлення

Answer 1

320+90=320+100=420-10=410

Answer 2

Calculating 320 + 90 Using Rounding Methods

To calculate the sum of 320 and 90 using different rounding methods, we can explore a few approaches.

Rounding to the Nearest Ten: To calculate the sum of 320 and 90 by rounding to the nearest ten, we can round each number to the nearest ten and then add them together.

320 rounded to the nearest ten is 320, and 90 rounded to the nearest ten is 90. Therefore, the sum of 320 and 90 when rounded to the nearest ten is 320 + 90 = 410.

Rounding to the Nearest Hundred: If we round 320 and 90 to the nearest hundred and then add them together, we get:

320 rounded to the nearest hundred is 300, and 90 rounded to the nearest hundred is 100. Therefore, the sum of 320 and 90 when rounded to the nearest hundred is 300 + 100 = 400.

Rounding Up: When rounding up to the nearest whole number, the sum of 320 and 90 is 410.

Rounding Down: When rounding down to the nearest whole number, the sum of 320 and 90 is 410.

In summary, the sum of 320 and 90 using different rounding methods is as follows: - Rounding to the nearest ten: 410 - Rounding to the nearest hundred: 400 - Rounding up: 410 - Rounding down: 410