Olympiad Test: Number System -2 - Class 4 MCQ

The predecessor means subtract 1 to the given number 68,119 - 1 = 68,118

• To compare the numbers 43,416 and 9,361, look at their values.
• 9,361 is a four-digit number, while 43,416 is a five-digit number.
• Any five-digit number is always larger than any four-digit number.
• Therefore, 9,361 is smaller than 43,416.
• The correct answer is option 1, which is 9,361.

The number is 75,025. So, the standard form is 75025.

The greatest 6-digit number is 999,999. The successor means the next number after it, which is 1,000,000 or 10,00,000.

Add 1000 to 46,900 to get 47,900.

• The predecessor of a number is the one that comes immediately before it.
• To find the predecessor of 48,219, subtract one from it.
• 48,219 - 1 equals 48,218.
• Hence, the predecessor of 48,219 is 48,218.

• Select the smallest non-zero digit for the first place: 1
• Arrange the remaining digits in ascending order: 0, 1, 4, 6
• Combine them to form the smallest number: 10,146

The place value of 8 is in the tens place, so its value is 80.

Add all the numbers together to get 37,216.

To determine the correct answer, we need to know the place value to which we are rounding the number 4156. Since no specific place value is mentioned, it is typically assumed that we round to the nearest thousand in such questions.

Rounding 4156 to the nearest thousand:

1. Identify the thousands digit (4 in this case).
2. Look at the hundreds digit (1 in this case).
3. If the hundreds digit is 5 or more, round up the thousands digit. If it is less than 5, keep the thousands digit the same.

Since the hundreds digit is 1, which is less than 5, we do not round up.

So, 4156 rounded to the nearest thousand is:

1. 4,000