Grade 4 - Progress in Mathematics

25.James makes 12 batches of

crescent rolls. Each batch takes

11 minutes to bake. How much

baking time in all will he need?

Use rounding to estimate. Then multiply.

1. 33 2. 23 3. 42 4. 24 5. 32
   
   22
   11
   12
   21
   13


2. 12 7. 42 8. 32 9. 14 10. 22
   
   44
   24
   32
   12
   21

To multiply money by a 2-digit number:


Multiply the same way you multiply $. 2 3

whole numbers. 
 13

69

 230

$ 2. 99

Multiply Money

$8.00


 40

$320.00


Write a decimal point in the product

two places from the right.


Write the dollar sign in the product.

Multiply.

11. $ .52 12. $ 6.00 13. $ .23 14. $ .41
    
    10
    50
    23
    21


12. $ .43 16. $ 4.00 17. $ .11 18. $ .12
    
    20
    30
    85
    14


13. 40
    $.21 20. 12
    $.43 21. 32
    $3.00


14. $1.00
    39 23. $.69
    40 24. $.16
    17

26.James baked crescent rolls

for a bake sale. He charged

fifty cents per roll and sold 68 rolls.

How much money did he earn?

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