Hello my name is Louis and today I am going to show you my math that I have been doing this week. goal : use a broad range of mental strategies to solve addition and subtraction problems. this is my work down below.
my favorite strategy is place value because it is simple and easy you need to add the hundreds, then the tens and finally the ones.
320 + 407 =
300 + 400 = 700
20 + 0 = 20
7 + 0 = 7
= 727
have you used these strategies before ?
