Tisha tried to evaluate an expression. Here is her work: 490÷729–23 = 490÷499–23 Step 1 = 109–23 Step 2 = 90–23 Step 3 = 883 Ste
1 answer:
Answer:
No, she made mistake from step 3, going to step 4
Step-by-step explanation:
See attachment for complete expression and Tisha's steps
Required
Is she correct?
The steps up to step 3 is correct.
However, going to step 4; she made a mistake
Her expression is:
Step 3:
The correct step is to multiply 2 by 3 (using BODMAS)
This will give:
But instead she evaluated the subtraction first, which is incorrect.
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