Question: Can you give me hard math questions for std 3?
1. Let's start with a challenging multiplication problem for standard 3 students.
2. Problem: Calculate $$234 \times 56$$.
3. Formula: Multiplication is repeated addition. Here, we multiply the two numbers directly.
4. Step 1: Multiply 234 by 6 (units digit of 56):
$$234 \times 6 = 1404$$
5. Step 2: Multiply 234 by 50 (tens digit of 56):
$$234 \times 50 = 11700$$
6. Step 3: Add the two results:
$$1404 + 11700 = 13104$$
7. Final answer: $$234 \times 56 = 13104$$
This problem helps practice multiplication of a three-digit number by a two-digit number, which is a good challenge for standard 3 students.