Grade 4 Academic Math U4L8HW2

3. A bag of flour weighs 28 lb. How much do 50 such bags of flour weigh?

4a. A jeweler maker sold 48 necklaces for $895 each. Estimate to find out whether he received more than or less than $45,000 from selling the necklaces.

4b. A jeweler maker sold 48 necklaces for $895 each. How much money did he receive from selling the necklaces?

5. The students in the accounting club are helping the gym teacher buy basketball equipment by calculating the costs. How much will it cost to buy all of the equipment?

6. A sailboat costs $22,299 to buy and $358 a month to dock at the marina. Estimate to find out if $25,000 is enough to buy and dock the boat for the first year.

7a. There are 1 ,682 ducks on a farm. There are twice as many rabbits as ducks. There are three times as many chickens as rabbits. How many ducks, rabbits, and chickens are there altogether?

7b. There are 1 ,682 ducks on a farm. There are twice as many rabbits as ducks. There are three times as many chickens as rabbits. How many more chickens and ducks altogether are there than rabbits?

8. A folding chair costs $35. A school wants to buy enough chairs for 23 rows of 48 chairs. How much will the chairs cost altogether?

9. Last year, Jackelyn earned $780 a month. This year, she will have earned twice as much a month as last year. How much more will she earn at the end of this year than last year?

10. There are twice as many nails as screws in a bin. If 510 of the nails and 75 of the screws are used, there will be the same number of nails as screws. How many nails were in the bin to start with?

Hint: