Test Yourself. Иванова Ю.В - 33 стр.

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18. Calculate the height of a triangle which has a base of 10 cm
and an area of 50 cm
2
.
18.
19. Divide six by three. Subtract one. Add four. Multiply by
five. What is the answer?
19.
20. Mike’s car does 25 miles per gallon of petrol. A gallon of
petrol costs 70 pence. How much will it cost Mike to cover
the distance of 350 miles?
20.
21. Calculate the height of a triangle which has an area of 32
cm
2
and a length of the base of 8 cm.
21.
22. Take the square root of 81. Add the square root of 16.
Multiply by 12. Divide by 4. What is the answer?
22.
23. Willy’s car does 40 miles per gallon of petrol. A gallon of
petrol costs $ 1.2. How much will it cost Willy to cover the
distance of 100 miles?
23.
24. Calculate the height of the triangle, which has an area of 35
cm
2
and a length of 10 cm.
24.
25. Jack goes shopping with $7.50 in his pocket. He buys a
pound of bananas for 70 cents, a loaf of bread for 60 cents
and four rump steaks for $2.20. How much money does he
have when he gets back?
25.
26. Calculate the length of a box which has a volume of 60 cc, a
height of 4 cm and a width of 3 cm.
26.
27. Take the square root of 49. Add the square root of 64.
Subtract 5. Multiply by 6. Divide by 20. What is the
answer?
27.
28. Divide forty four by eleven. Multiply by five. Add seven.
Subtract eight. What is the answer?
28.
29. A circle has a circumference of 21 cm. Calculate the
diameter.
29.
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