Question

2657+2828+28292+911×999=? 3×3×3×3×3×3×3×3×3+9183728=? Прикиньте это в 4классе!

Answer 1

В первом 943 866
Во втором 9 203 411

Answer 2

2657 + 2828 + 28292 + 911 × 999 = 28,383,265

To calculate this, we can follow the order of operations (PEMDAS/BODMAS). First, we multiply 911 by 999, which equals 909,089. Then, we add the other three numbers: 2657 + 2828 + 28292 = 33,777. Finally, we add the result of the multiplication to the sum of the other three numbers: 33,777 + 909,089 = 28,383,265.

So, 2657 + 2828 + 28292 + 911 × 999 equals 28,383,265.

Now, let's move on to the next question.

3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 = 19,683

To calculate this, we simply multiply 3 by itself nine times. This can also be written as 3^9. The result is 19,683.

So, 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 equals 19,683.

Lastly, let's consider the question about estimating this in 4th grade.

Estimating calculations is an important skill taught in mathematics, and it can be done at different levels depending on the grade level. In 4th grade, students typically learn to round numbers to the nearest ten, hundred, or thousand.

For example, if we take the first calculation, 2657 + 2828 + 28292 + 911 × 999, we can round the numbers to the nearest ten or hundred and then perform the calculation. Let's round the numbers to the nearest ten:

2657 rounds to 2660 2828 rounds to 2830 28292 rounds to 28300 911 rounds to 910 999 rounds to 1000

Now, we can perform the calculation using the rounded numbers:

2660 + 2830 + 28300 + 910 × 1000 = 32,700

So, if we estimate the calculation in 4th grade by rounding to the nearest ten, the result would be approximately 32,700.

It's important to note that estimation is a useful skill for quickly approximating calculations, but it may not always provide an exact answer.