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Dailyncolminasgo
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12.If a notebook is 14.75, how much is the cost of 8 notebooks?
A.120.00
B.130.00
C.135.00
D.140.00

13.For thier fund-raising, a Grade 5 class sold packages of cookies at 11.75 a package. If they sold 210 packages, about how much did they get?
A.2,300.00
B.2,400.00
C.2,500.00
D.2,600.00

14.A working student earns 29.50 an hour, working 4 hours a day and 3 days a week. About how much does she earn a week?
A.320.00
B.330.00
C.350.00
D.360.00

15.A math book is 3.78 centimeters thick. Estimate how thick will 21 math books on a shelf be?
A.50 cm
B.60 cm
C.80 cm
D.90 cm​

Sagot :

Angela8689go

12.)a.

✎estimate : 15×8

13.)b.

✎estimate: 12×200

14.)d.

✎estimate : 30×3×4

15.)c.

✎estimate: 20× 4

Estimating products help us to check the reasonableness of an answer.

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Hope it helps<33

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-angela8689-

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