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Adding with 10’s
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10 + 1 10 + 5 10 + 3 10 + 4 10 + 7 10 + 6 10 + 2 10 + 8 10 + 9 10 + 2 10 + 1 10 + 4
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10 +-- 11 10 + 5 15 10 + 3 13 10 + 4 14 10 + 7 17 10 + 6 16 10 + 2 12 10 + 8 16 10 + 9 19 10 + 2 12 10 + 4 14 10 + 1 11
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+ 1 11 + 5 15 + 3 13 10 + 4 14 10 + 7 17 + 6 12 10 + 2 12 10 + 8 18 10 + 9 10 + 2 10 + 1 10 + 4
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10 + 1= __ 10 + 2= __ 10 + 3= __ 10 + 1= __ 10 + 4= __ 10 + 7= __ 10 + 8= __ 10 + 9= __ 10 + 2= __ 10 + 5= __ 10 + 6= __ 10 + 1= __ 10 + 9= __ 10 + 7= __
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10 + 1= 11 10 + 2= 12 10 + 3= 14 10 + 1= 11 10 + 4= 14 10 + 7= 17 10 + 8= 11 10 + 9= 19 10 + 2= 12 10 + 5= 15 10 + 6= 16 10 + 1= 11 10 + 9= 19 10 + 7= 17
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10 + 1= __ 10 + 2= __ 3 + 10= __ 10 + 1= __ 10 + 4= __ 7 + 10= __ 8 + 10= __ 10 + 9= __ 10 + 2= __ 5 + 10= __ 6 + 10= __ 10 + 1= __ 10 + 9= __ 7 + 10= __
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10 + 1= 11 10 + 2= 12 3 + 10= __ 10 + 1= __ 10 + 4= 14 7 + 10= 17 8 + 10= __ 10 + 9= __ 10 + 2= __ 5 + 10= 15 6 + 10= 13 10 + 1= __ 10 + 9= __ 7 + 10= __
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