Samacheer Kalvi Class 5 Maths Solutions Term 1 Chapter 2 Numbers Exercise 2.1

Tamilnadu Samacheer Kalvi 5th Maths Solutions Term 1 Chapter 2 Numbers Ex 2.1

Fill In The Blanks

Question 1. (a) Complete the sequence: 10,101; 10,102; 10,103; ____; ____; ____; ____
Answer: The complete sequence is 10,101; 10,102; 10,103; 10,104; 10,105; 10,106; 10,107. Here, each number is simply one more than the previous one, forming a simple counting pattern.
In simple words: Each number in this list increases by 1. Just keep adding 1 to find the missing numbers.

🎯 Exam Tip: Always look for the pattern between the given numbers, whether it's adding, subtracting, multiplying, or dividing.

Question 2. (b) Complete the sequence: 10,220; 10,230; ____; ____; ____; 10,270
Answer: The complete sequence is 10,220; 10,230; 10,240; 10,250; 10,260; 10,270. Each number in this series increases by 10, showing a clear step-by-step growth.
In simple words: This list grows by 10 each time. You need to add 10 to each number to fill the blanks.

🎯 Exam Tip: When filling number sequences, check if the numbers are increasing or decreasing and by what fixed amount.

Question 3. (c) Complete the sequence: 10,920; ____; ____; ____; 10,960; ____
Answer: The complete sequence is 10,920; 10,930; 10,940; 10,950; 10,960; 10,970. This sequence also follows a pattern where each number is 10 more than the one before it.
In simple words: In this number pattern, you simply add 10 to get the next number in the line.

🎯 Exam Tip: Even if the numbers are large, the pattern (like adding 1 or 10) can be simple. Don't be intimidated by the size of the numbers.

Question 4. (d) Complete the sequence: 11,101; 11,102, 11,103; ____; ____; ____;
Answer: The complete sequence is 11,101; 11,102; 11,103; 11,104; 11,105; 11,106; 11,107. Just like the first sequence, this one increases by one unit for each step.
In simple words: This is a simple counting sequence. Add 1 to each number to get the next one.

🎯 Exam Tip: When filling sequences with multiple blanks, ensure the pattern holds true across all the numbers, including the ones already provided.