The fact that 3 x 9 = 27
9x3
break the nine into to numbers (3 and 6 because 3+6=9) Mulitply both of these numbers by 3 3x3=9 6x3=18 Then add together the products of the two numbers 18+9=27
3 x 9 = 27
3x9=3x3x3=27 Not sure what you mean by break apart. One way to do it in your head if you need to and don't just know it is 27 is to say 3x10=30 which is easy because adding tens is easy for most people. Now 3x9 is one less 3 then 3x10. That is to say, think of 3x9 as 9 threes, and 10x3 as 10 threes. So 30-3 is 27
breaking the array 3x9=27 3x3=9 3x3=9 3x3=9 9+9+9=27 one more way of doing it is 3x3=9 and 3x6 =18 , 9+18 =27
Yes. 3x9=27 and it is the same with 9x3. It is called the commutative property which allows you to switch the order of numbers and keep the same answer. Multiplication and addition are commutative (not division nor subtraction).
break the nine into to numbers (3 and 6 because 3+6=9) Mulitply both of these numbers by 3 3x3=9 6x3=18 Then add together the products of the two numbers 18+9=27
3x9 ones = 27
3 x 9 = 27
Yes, because it is the same thing...... 3x9=27 and 9x3=27 also!
It is 3 times 9 = 27
3x9=3x3x3=27 Not sure what you mean by break apart. One way to do it in your head if you need to and don't just know it is 27 is to say 3x10=30 which is easy because adding tens is easy for most people. Now 3x9 is one less 3 then 3x10. That is to say, think of 3x9 as 9 threes, and 10x3 as 10 threes. So 30-3 is 27
27
yes
breaking the array 3x9=27 3x3=9 3x3=9 3x3=9 9+9+9=27 one more way of doing it is 3x3=9 and 3x6 =18 , 9+18 =27
Yes. 3x9=27 and it is the same with 9x3. It is called the commutative property which allows you to switch the order of numbers and keep the same answer. Multiplication and addition are commutative (not division nor subtraction).
3x9, 3x3x3, or 1x27
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