Equation 242 - 161=126
This is the strategy I used was 126+100=226+20=246-4=242.
This is a addition strategy up to hundred, This is a new strategy I learned because i'm not used to adding addition.
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Equation 9.69-8.48=1.21
Strategy 9-8=1 .6-.08=.01 1+2+.011=1.21
This Strategy is decimals this is the strategy I used 9-8=1 .6-.08=.01 1+2+.011=1.21.
They are like pluses,take away and adition.
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