Tip: HOW TO SQUARE A BIG NUMBER Step 1:Take that number, then plus with its ones. Step 2:Take the "Step 1" number, multiply it with the tens and then multiply it by 10. Step 3:Get the square of the ones, then add it with the "Step 2" number. Example: 72x72 Step 1: 72+2=74 Step 2: 74x7x10=5180 Step 3: 51800+(2x2)=5184
PLEASE CREDIT ME BEFORE USING THE TIP
