Maths Multiplication Shortcut: Multiplication of two 2Digit Numbers 
Tips and Tricks to multiply two 2digit numbers ab and xy:
Step 1: Multiply and write the rightmost digits(by) of the two given numbers down. Step 2: Now, do crossmultiplication(ay and bx) and add the products(ay + bx) and write down to the left of by. Step 3: Next, multiply the leftmost digits(ax) of the two given numbers and write down to the left of previous result. (If necessary, add any final carry). Here is the quick formula:
Note: If necessary, add any final carry. 
Example 1: Find 12 × 13 
Example 2: Find 86 × 92 
Example 3: Find 47 × 68 
Now, try the following questions:

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