Powers of 10
104
10,000
Sort the following numbers from least to greatest.
107 12.6 0.40 10.7 0.41 0.407
0.407, 0.41, 0.40, 10.7, 12.6, 107
Find the sum:
3.45 + 7.8
11.25
Find the product:
124 x 76
9,424
What is 18 / 9 ?
2
8 x 105
800,000
What is 123.08 in expanded form?
(1x100) + (2x10) + (3x1) + (8x 1/100)
Find the difference:
709.5 - 123.8
585.7
Find the product:
8.51 x 1.3
11.063
What is 18,000 / 90 ?
200
4.81 x 102
481
Ellie wrote 907.12 in expanded form as this:
(9x100) + (7x1) + (1x 1/10) + (2x 1/10)
Find her mistakes.
It should be (2x 1/100) not (2x 1/10)
Emma bought a notebook for $3.75, a pen for $2.50, an eraser for $1.06, and a bookmark for $0.68. How much did she spend on the notebook, pen, and eraser?
Emma spent $7.31
A factory produces 25 toys each hour. If the factory operates for 8 hours a day, how many toys does it produce in one day?
Estimate the quotient:
228 / 19
10
A baker is making a special batch of cookies. Each cookie requires 3.25 grams of sugar. If the baker plans to make 103 cookies for a big event, how many grams of the sugar will the baker need in total?
The baker will need 3,250 grams of sugar.
Analyze the pattern. What is the missing number?
300 30 3 ___ 0.03 0.003
0.3
Sophie had $50.00 in her savings account. She bought a new dress for $29.75. How much money does she have left in her savings account after the purchase?
Sophie had $20.25 left after her purchase.
A bakery sells boxes of cookies. Each box contains approximately 23 cookies. If a customer wants to buy 17 boxes for a party, about how many cookies will they have in total?
The customer would have about 400 cookies.
A farmer has 478 apples that he wants to pack into boxes. Each box can hold around 6 apples. About how many boxes will the farmer need to pack all the apples?
The farmer will need about 80 boxes.
The number 0.08 is 1/10 of which decimal?
0.8
Which decimal is equivalent to
(5x102) + (6x1) + (2x 1/10) + (7 x 1/100)
506.27
Liam went to the store and bought three items. He purchased a book for $12.99, a bottle of water for $1.75, and a snack for $3.50. After that, he found a coupon that saved him $2.00 off his total purchase.
How much did Liam spend after applying the coupon?
Liam spent $16.24.
A gardener is planting flowers in rows. She plants 8 rows of flowers and each row contains 15 flowers. Each flower seed cost her $1.42. How much did she spend in total?
The gardener spends $170.4 total
Emma is organizing a school event and needs to arrange 150 chairs into rows. If she wants to have 30 chairs in each row, how many rows will she need?
Emma will need 5 rows.