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031_G1U20_G1U21˙—» ¿º 2011.3.22 4:23 PM ˘ ` 33 PDF_In 2540DPI 150LPI T
Objective: Add to make numbers to 20
Subtract to make 10.
14- 4 =10 -5=10
11- =10
12- =10 -9=10
17- =10
-0=10
Try to make 10.
10`+`0`=10 10`+`1`=11 10`+`2`=12 10`+`3`=13 10`+`4`=14
10`+`5`=15 10`+`6`=16 10`+`7`=17 10`+`8`=18 10`+`9`=19
20. Make Numbers 33
Objective: Add to make numbers to 20
Subtract to make 10.
14- 4 =10 -5=10
11- =10
12- =10 -9=10
17- =10
-0=10
Try to make 10.
10`+`0`=10 10`+`1`=11 10`+`2`=12 10`+`3`=13 10`+`4`=14
10`+`5`=15 10`+`6`=16 10`+`7`=17 10`+`8`=18 10`+`9`=19
20. Make Numbers 33
