Test: Numbers - Class 4 MCQ

An even number is defined as any integer that ends in 0, 2, 4, 6, or 8. Therefore, 8,764 is even because it ends in 4. This classification is essential in various mathematical operations, including divisibility tests.

In the Indian number system, the first three digits from the right represent the ones period (ones, tens, hundreds). Understanding these periods helps in accurately reading and writing large numbers.

The successor of a number is found by adding 1. Therefore, the successor of 1,23,456 is 1,23,457. This concept is fundamental in understanding sequences and numerical patterns.

To form the largest number, arrange the digits in descending order. Thus, the largest combination is 9753. Interestingly, the arrangement of digits can drastically change the numeric value, showcasing the importance of order in number construction.

Rounding to the nearest ten involves checking the ones place (5). Since it is 5 or more, we round up to 2,250. Rounding is a practical skill used frequently in everyday life for estimation.

An odd number ends with 1, 3, 5, 7, or 9. Here, 12,345 is odd as it ends in 5. Recognizing odd and even numbers is fundamental in various arithmetic operations and number theory.

The predecessor of a number is found by subtracting one. Thus, the predecessor of 2,00,005 is 2,00,004. This concept is crucial when working with sequences and understanding how numbers relate to one another.

The Indian number system groups numbers by starting from the right, first grouping three digits as the ones period, followed by two-digit groups for the thousands period. This structure helps in understanding large numbers clearly.

The place value of '6' in 56,789 is 6000, as it is in the thousands place. Understanding place value is crucial for mathematical operations and helps in comprehending the significance of each digit in a number.

To round 4,567 to the nearest hundred, you look at the tens place (which is 6). Since it is 5 or greater, you round up, resulting in 4,600. Rounding provides a simpler way to estimate values in calculations.

In the International system, 1,000,000 is read as one million. The terminology varies between the Indian and International systems, which can lead to confusion, making it important to be familiar with both.

Rounding 9,876 to the nearest thousand involves looking at the hundreds digit (8). Since it is 5 or greater, we round up to 10,000. Rounding can help simplify numbers for easier calculations in real-life situations.

The number 5,67,890 has 6 digits. Counting the digits is an essential skill in understanding the magnitude of numbers and their place in the number system.

The largest number is formed by arranging the digits in descending order, leading to 43210. This exercise illustrates the significance of digit arrangement in forming numbers.