2007-03-11 12:37:07 · 4 answers · asked by Kimberlyn A 1 in Science & Mathematics ➔ Mathematics
100
2007-03-11 12:39:27 · answer #1 · answered by Terras 5 · 0⤊ 0⤋
Multiplication is a short form of addition. To be able to do it you need to memorize the tables. In a pinch you can substitute addition which in this case will be 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10. See why it is better to memorize the tables.
2007-03-11 19:41:38 · answer #2 · answered by St N 7 · 0⤊ 0⤋
earlier i was also confused by "times" thing, but now i know there is a simple solution what ever comes before times just multiply it with whatever coming after it.example:- 5 times 4=20, 6 times 7 = 42, and 10 times 10=100,this is an easy way of understanding
2007-03-11 19:53:13 · answer #3 · answered by andy 2 · 0⤊ 0⤋
100. Here's a trick when multiplying numbers that end in zero: Multiple the previous numbers that aren't zeros than add the amount of zeros in both numbers, that are given in the problem, to that number.
For example in the multiplication of 40 and 20, you multiple 4 and 2 which is 8, than attach the two zeros (from 40 and 20) to the number 8 to get 800 as the answer.
2007-03-11 20:00:15 · answer #4 · answered by Anonymous · 0⤊ 0⤋