Katie wrote these steps to find the estimated difference between 69 and 31.
step 1: 69...
Mathematics, 12.11.2019 18:31 amyy49
Katie wrote these steps to find the estimated difference between 69 and 31.
step 1: 69 rounded to the nearest ten is 70.
step 2: 31 rounded to the nearest ten is 40.
step 3: the term difference means "to subtract.”
step 4: the estimated difference between 69 and 31 is
70 – 40 = 30.
in what step did her first error occur?
step 1
step 2
step 3
step 4
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