Break apart and make a ten strategy mental math
Okay so math was not my strongest subject, I think I know the answer but I want to make certain. My 4th grader is doing Mental math for the first time today. Please let me know if I got this right. The break apart strategy is when you take for example 56 + 43 = ? and turn it into 50 + 6 + 40 + 3 = 99 is that correct?
And the make a ten method is when you round the numbers to the nearest ten and then add them, ie 56 + 43 =? would be 60 + 49 = 109. Please let me know the info I am finding on the internet is making me more confused.