400
Yes
400
423x1 423
Expanded notation is expanding the whole number by each place value.Example: 1,234 = (1,000 * 1) + (100 * 200) + (10 * 3) + (1 * 4)Expanded Notation is where you make a number sentence out of that number by looking at the hundreds, thousands, ect. For example I have the number 423 then this would be the expanded notation: 100 times 4 because the number 4 is in the hundreds place. The number 2 would be placed like this: 10 times 2 because the number 2 is in the tens place. And the number 3 would be placed like this: 3 times 1 because 3 is in the ones place. So the whole equation would look like this: 100 times 4 + 10 times 2 + 1 times 3 = 423
423.0
400
420
To round 423 to the nearest ten, we look at the digit in the tens place, which is 2. Since the digit to the right of it is 3, which is 5 or greater, we round up. Therefore, 423 rounded to the nearest ten is 430.
400
Yes
400
2,900,000
1, 3, 9, 47, 141, 423
423 is a composite number. Its prime factorisation is 3 x 3 x 47.
I put the larger number above the smaller number and then I subtract. 719 423 ----- 296
No, it is not a prime number.