Rounding
About 32 x 51
1,500
20 x 5
100
Solve 21 x 3 using the area model
63
Solve 18 x 5 using the standard algorithm
90
A football coach orders 30 jerseys for his team. Each jersey costs $29 dollars. How much money do the jerseys cost in all?
The jerseys cost $870 in all.
About 38 x 27
What is about 1,200
40 x 9
360
Solve 56 x 5 using the area model
280
Solve 25 x 71 using the standard algorithm
1,775
Julio scored 18 points in every basketball game this season. If there were 14 games, how many points did Julio score all season?
Julio scored 252 points all season.
If 61 x 23 is about 1,200, is the actual product greater than or less than the estimated product?
What is greater than
30 x 70
2,100
Solve 45 x 71 using the area model
3,195
Solve 98 x 76 using the standard algorithm
7,448
Tamara makes $27 an hour. She worked 42 hours this week. How much money will she earn?
She will earn $1,134.
About how much is 98 x 17?
50 x 200
10,000
2,494
Solve 163 x 27 using the standard algorithm
4,401
Austin's allowance is $15 a week. He spends $4 each week on baseball cards. How much money will he have after 5 weeks?
He will have $55 after 5 weeks.
If 34 x 59 is about 1,800, is the actual product greater than or less than the actual product?
What is less than
600 x 5,000
3,000,000
Solve 206 x 34 using the area model.
Hint: put each number into expanded form first.
6,324
Solve 4,326 x 54 using the standard algorithm
233,604
Maggie wants to buy a new lego set that costs $430. She earns $14 for each of lawn that she mows for her neighbors. Over the past few weeks, Maggie has mowed 32 lawns. Does she have enough money to buy the lego set? If so, how much money does she have left over?
Yes she has enough money and she will have $18 left over.