Page 64 - Mathematics

14. Find the value of each of the following expressions.

(a) 69 875 × 12 + 789 852 ÷ 12 (to the nearest thousands)
(b) 134 048 ÷ 568 − 96 045 + 279 455 ×18

(to the nearest hundred thousands)
(c) 155 × (98654168 − 92652149) (to the nearest millions)
(d) 2618954 + (45260 ÷ 365) × 68 − (1614312 − 1594069)

(to the nearest thousands)
(e) 895 + (5 894 325 ÷ 85 425) − 794 (to the nearest tens)

15. (a) A certain boys’ school with 2,485 students has decided to make
Tanzania Institute of Education
uniforms for all students. If a shirt and a pair of trousers use 2 m

and 1.5 m, respectively, how much materials of cloth in total will
the school need? Give your answer to the nearest hundreds.

(b) Two hundred and forty-six university students were given
Tshs 21,069,900 to share equally among themselves. How much
money did each student get to the nearest thousands?

(c) A train can carry 150 passengers in one trip. If it makes 16 trips a day
(i) Estimate to the nearest ten thousands the number of passengers

the train can carry in 5 days.
(ii) How much money to the nearest millions will be collected for
16 days when each passenger pays a fare of Tshs 1,050?
7 2
16. A man gave of his money to his son, of the remaining amount
25 9
to his daughter, and the rest amount to his wife. If his wife got
Tshs 11,990,300;

(a) How much money to the nearest ten thousands did the man have
in total?
Mathematics Form One 17. A tablet contains 0.1763688 milligrams of a certain chemical. A dose
(b) Estimate the amount of money to the nearest hundred thousands
collected by his daughter.

1
requires a child to take a tablet, three times a day for 7 days. Find the
2
total amount of chemical in the dose correct to hundredths of a milligram.

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