Mathematics, 20.08.2019 16:10, naomirice24
Understand subtraction as adding the opposite problem which expression is equivalent to 7\dfrac34 - \dfrac127 4 3 β 2 1 7, start fraction, 3, divided by, 4, end fraction, minus, start fraction, 1, divided by, 2, end fraction? choose 1 choose 1 (choice a) a 7\dfrac34+\left(-\dfrac12\right)7 4 3 +(β 2 1 )7, start fraction, 3, divided by, 4, end fraction, plus, left parenthesis, minus, start fraction, 1, divided by, 2, end fraction, right parenthesis (choice b) b -7\dfrac34+\left(-\dfrac12\right)β7 4 3 +(β 2 1 )minus, 7, start fraction, 3, divided by, 4, end fraction, plus, left parenthesis, minus, start fraction, 1, divided by, 2, end fraction, right parenthesis (choice c) c \dfrac12+\left(-7\dfrac34\right) 2 1 +(β7 4 3 )start fraction, 1, divided by, 2, end fraction, plus, left parenthesis, minus, 7, start fraction, 3, divided by, 4, end fraction, right parenthesis (choice d) d \dfrac12+7\dfrac34 2 1 +7 4 3
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Understand subtraction as adding the opposite problem which expression is equivalent to 7\dfrac34 -...
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