Page 53 - MathGPT_V1.0_C5

D:\Surender Prajapati\Books Final_CBSE and ICSE\ICSE\Preparatory_Stage_Maths-5_(31-10-2023)\Open_Files\CHAP_02
\\November 3, 2023 10:57 AM Surender Prajapati Proof 5 Reader _________________________ Date: ___________________74

Practice Time 2G

Simplify the following.
1. 63 ÷ [24 – {15 – (4 × 3)}] 2. [97 + {30 – (5 × 2)}] × 15

3. 17 + [20 × {15 – (8 ÷ 4)} 4. 102 × {72 ÷ {65 + (84 ÷ 12)}]

5. 3982 × {45 – (90 ÷ 2)} 6. 84 ÷ [40 – {15 + (13 – 9)}]

7. [25 × {33 – (3 × 10)}] ÷ 3 8. 237 + [764 – {165 + (132 ÷ 33)}]

9. 80 + [20 × {20 – (10 ÷ 5)}] 10. 17 × [96 + {30 – (11 + 5)}]

Think and Answer
Place parentheses at the correct places so that you get the given answer.
(a) 7 + 6 × 8 = 104
(b) 5 + 3 × 5 5 = 35

FRAMING WORD PROBLEMS

In this chapter, you have solved word problems based on the four basic operations, that is,
addition, subtraction, multiplication and division.
Now it is the time to frame story problems for a given mathematical sentence connecting
with real life situations.

For this, first consider the following activity.
The Maths teacher divides the class into groups of 4 students each and distributes the

sheets having four number sentences.

She asks the class to convert the given mathematical sentences into beautiful story
problems. Let us see what the students have done.

21240 + 9874 341270 – 74561 12345 × 75 58212 ÷ 54
= 31114 = 266709 = 925875 = 1078

Group 1 There are 21240 Hari Prasad The cost of a 54 people together
adults and 9874 bought a tractor washing machine is collected `58212
children in a for `341270 and `12345. for a charity.

village. a motorcycle for A dealer ordered If all of them
What is the total `74561. 75 such machines. contributed an

population of the What is the How much will he equal amount, find
village? difference between pay in all? the contribution of
their prices? every one.

Mathematics-5 51