Question

Estimate the product. Choose a method 33 X 76

Answer 1

The method I'll be presenting is the old traditional way, hehe.

33
x 76
——

1) 3 x 6 is 18.

1
33
x 76
——
8

2) Again, 3 x 6 is 18, adding 1 (since you carry the 1 in 18 over) is 19.

1
33
x 76
——
198

3) 3 x 7 is 21.

2 1
33
x 76
——
198
1

4) Once again, 3 x 7 is 21, plus 1 is 23.

2 1
33
x 76
——
198
231
———

4) Now we add 198 + 231.

33
x 76
——
1 198 (PS. carry the
231 one in 1+9)
———
2508

5) Now we round, in this case we shall round to the nearest thousand since it makes sense too.

2,508
^
Take a look at the thousands place, which is two.

2,508
^
To the right of 2 is 5. Any number to the right between 5-9 you add one to the place value and zap the rest of the numbers to the right to 0. So...

2,508 rounded is
3,000

The answer is 3,000.

Hoped I helped!

Answer 2

Use the tens.Try 30x80. 76 rounds up to 80 and 33 rounds down to 30.