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032_G1U21_G1U22˙—» ¿º 2011.3.22 4:24 PM ˘ ` 42 PDF_In 2540DPI 150LPI T
Unit
21 What’s Left after Making 10?
Use tally marks ( ) to write addition sentences.
6+6= 7+7=
6
6
0+2= 2
8+8= 9+9=
Chat
Talk about how you can use 7`+`7`=`14 to find 7`+`8.
42
Unit
21 What’s Left after Making 10?
Use tally marks ( ) to write addition sentences.
6+6= 7+7=
6
6
0+2= 2
8+8= 9+9=
Chat
Talk about how you can use 7`+`7`=`14 to find 7`+`8.
42
