Place Value
In the number 28,675: the number "8" is worth
8,000
Round this number to the nearest hundred thousand.
786, 394
800,000
On Monday, 544 people went to the Willow Grove Mall. On Tuesday, 439 people went to the Willow Grove Mall, and on Wednesday 398 people went to the Willow Grove Mall. Estimate how many people in all went to the Willow Grove Mall.
500 + 400 + 400= 1,300
Make an estimate, then add.
79 + 38=
80 + 40= 120
79+ 38= 117
9 x 6=
54
In the number 785,908, the value of the "7" is
700,000
Round this number to the nearest ten thousand.
33,333
33,000
Dominic is saving up his money to buy a new toy that costs $130. So far he has saved up $68. His uncle gave him another $30. About how much more money does Dominic still need?
70+30= 100; 130-100= 30
Make an estimate, then add.
423 + 867=
400 + 900= 1,300
423+867= 1,290
8 x 9=
72
Write the number that has:
8 in the hundreds place
6 in the ones place
4 in the ten thousands place
9 in the thousands place
0 in the tens place
49,806
Round this number to the nearest hundred.
6,094
6,100
On the way home from baseball practice, Colin stopped at his friends house for 17 minutes and at Wawa for 23 minutes. He spent 13 minutes walking home. He left practice at 4:00 and was supposed to be home by 5:00. Did he make it in time? How did you get your answer?
20 + 20+ 10= 50
Yes. I rounded the times to the nearest tens place and got 20 + 20+ 10= 50 minutes.
Make an estimate, then add.
369 + 1,439
400+1,400= 1,800
369 + 1,439= 1,808
7 x 3=
21
Round 3,290 to the nearest thousand.
3,000
The seating capacity for the home court of the Philadelphia 76ers is 19,500. Round this number to the nearest ten thousand.
20,000
You have to make 100 cupcakes for a party. You made 24 cupcakes. Your mom made 34 cupcakes. Your aunt thinks she has to make at least 50 more cupcakes for the party. Is your aunt correct? How did you get your answer?
20 + 30= 50; 100-50= 50
Yes, she is right. I rounded to the nearest ten and did 20 + 30= 50; 100-50= 50
Make an estimate, then add.
4,218 + 399=
4,000 + 400= 4,400
4,218 + 399= 4,617
9 x 3=
27
Round 287 to the nearest hundred.
Alaska has one of the smallest populations, with 731,449 people living there. Round this number to the nearest thousand.
731,000
Cassidy left cheerleading practice and stopped at the library for 38 minutes. She then stopped at her friends house to drop off a book for 7 minutes. It took her 29 minutes to wait for the bus to get her home. She left practice at 3:00 and was supposed to be home by 4:00. Did she make it home in time? How did you get your answer?
40 + 10 +30= 80
No she didn't. I rounded each number to the nearest tens place and did 40+ 10+ 30= 80.
Make an estimate, then add.
8,733 + 1,988=
9,000 + 2,000= 11,000
8,733 + 1,988= 10,721
8 x 12=
96