Answer
Estimate: $40 \times 3$ = 120
Exact:141.57
Work Step by Step
$42.9 \times 3.3$
First Let's find Estimate:
42.9 (rounds to) 40
3.3 (rounds to) 3
So, $42.9 \times 3.3$ = $40 \times 3$ = 120
Now, Let's find Exact:
42.9
$\times$ 3.3
______
1287
+ 1287
______
141.57 (2 decimals point in product)