| |
| |
1. |
Estimate the product. Then tell whether the estimate is greater than or less than the actual product. 5,384 × 3 |
| |
|
A. |
5,000 × 3 = 15,000; less than |
| |
|
B. |
5,300 × 3 = 15,900; less than |
| |
|
C. |
5,400 × 3 = 16,200; greater than |
| |
|
D. |
6,000 × 3 = 18,000; greater than |
| |
|
Hint |
|
| |
2. |
Estimate the product. Then tell whether the estimate is greater than or less than the actual product. $254 × 9 |
| |
|
A. |
$300 × 9 = $2,700; greater than |
| |
|
B. |
$200 × 10 = $2,000; greater than |
| |
|
C. |
$250 × 9 = $2,250; less than |
| |
|
D. |
$200 × 9 = $1,800; less than |
| |
|
Hint |
|
| |
3. |
The Garcia family wants to save $10,000 for a down payment on a house. They saved $1,800 a year for 5 years. Estimate the amount they saved. Do they have enough money? Explain. |
| |
|
A. |
$2,000 × 5 = $10,000; the estimate is greater than the actual product, so they do not have enough money. |
| |
|
B. |
$3,000 × 5 = $15,000; the estimate is greater than the actual product, so they have enough money. |
| |
|
C. |
$2,000 × 5 = $100,000; the estimate is greater than the actual product, so they do have enough money. |
| |
|
D. |
$2,000 × 5 = $10,000; the estimate is less than the actual product, so they do have enough money. |
| |
|
Hint |
|
| |
4. |
Autumn is saving up for this rocking chair. She saves $9 each week for 8 weeks. If Autumn estimated to see if she had saved enough to buy the rocking chair, would the estimate be misleading? |
| |
|
 |
| |
|
A. |
All estimates are misleading because they are different from the actual amount. |
| |
|
B. |
If Autumn had estimated $10 × 8 = $80, she would think she had enough money. The estimate is misleading because it is different from the actual amount. |
| |
|
C. |
If Autumn had estimated $10 × 10 = $100, she would think she had enough money. The estimate is misleading because it is greater than the actual amount. |
| |
|
D. |
If Autumn had estimated $10 × 8 = $80, she would think she had enough money. The estimate is misleading because it is greater than the actual amount. |
| |
|
Hint |
|
| |
5. |
There are 48 crayons in a box. About how many crayons are there in 6 boxes? |
| |
|
A. |
60 × 6 = 360 crayons |
B. |
50 × 6 = 300 crayons |
| |
|
C. |
40 × 6 = 240 crayons |
D. |
50 × 10 = 500 crayons |
| |
|
Hint |
|
|