Adding/Subtracting mix numbers, whole numbers and fractions

– Integers Rules, fractions or decimals. Same signs positive, different signs negative. Use 1 as a benchmark to estimate answer size. If 3.5 ÷ 2 = 1.75. Dividing by number greater than 1 gives an answer smaller than you started with. If 3.5 ÷ 0.8 = 4.375 . Dividing by number less than 1 gives you a larger value than you started with. Add ... ................
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