I can add and subtract like fractions at least at 80% proficiency. Apply and extend previous understandings of addition and subtraction to add and subtract rational numbers; represent addition and subtraction on a horizontal or vertical number line diagram.
1+2 3 = 3 3 =1 −3+1 7 = −2 7 −2+(−2) 5 = −4 5 −1+1 4 = 0 4
1 4 + 2 4 + 3 4 = 1+2+3 4 6 4 =1 2 4 =1 1 2 𝑦𝑎𝑟𝑑𝑠
−5−2 9 −11−(−5) 12 5−2 9 3 9 = 1 3 −7 9 −11+5 12 −6 12 − 1 2
On a separate piece of paper. Find 7 12 + 5 12 Find − 4 6 + − 1 6 On Monday, Kelly worked on a project for 3 10 hour. Tuesday, he worked for 7 10 hour, and on Wednesday he worked for 9 10 hour. How much time did he spend on his project? Find 3 12 − 9 12 . Write in simplest form. A picture mounted on art board is 1 8 inch thick. The frame for the picture is 5 8 inch thick. How much thicker than the picture is the frame. Page 287-288 #1-15