Question

a) Fill in the blanks
i. The local value of 0 in 51078 is
ii. 1 Million = _ lakhs.
lii. 123 X 9 + 3 = _
iii. 2 X 4
b) Use the number line to find the following :-
i 3+4
ii. 7-7
c) Estimate each of the following:-
i. 7674-3432 ( to the nearest thousands)
ii. 345 X 6 ( to the nearest tens)
2) Solve the following:-
a) Find the common factor:-
i. 16 and 20
ii. 45, 60 and 105
iii. 8, 12 and 20
b) Make a factor tree for:-
i. 80
ii. 16
iii. 35
c) i. Find the HCF of 504 and 663 using division method.
ii. Find the LCM of 16, 25 and 35 using the prime factorisation method.
3) Solve the following :-
a) Write the given ratio in their simplest form:-
i. 1,200: 500
ii. 48:32
3
iii. 1:
5
b) Write the following decimals as fractions:-
i. 0.6
ii. 10.06
ji.22.013
c) Write the following sets:-
i. The set B of the letters of the word 'INFINITE' (Roster Form).
ii. B= {7,14,21,28,35,42} ( Set-builder Form)
iii. A={X|4x-24=0,X=€ n} (Tabular Form)
iv. A={XIX is a multiple of 9} ( Roster Form)
4)
a) Solve the following :-
i. - 105 and +293
ii. - 15 from -20
ili. +18 +(-12) -(-6)-(-9)
b) i. Find the number which when subtracted from 200 gives 101.59
ii. Divide 75 in the ratio 2:3
iii. Determine x
3:7:: X: 77
c) Simplify :-
х +
i.
ll. 5 of++)
15​

Answer 1

Answer:

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Step-by-step explanation:

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