Qn-1. Convert Decimal number into Fraction.
(a) 3.7
(b) 3.07
(c) 0.005
(d) 1265.6
Qn-2. Convert Expression into Decimal number.
(a) 3.25 ×103
(b) 0.008 ×104
(c) 12.6195 ×10-5
(d) 25643.1 ×10-4
Qn-3. Convert Fraction to Decimal form.
(a)
(b) 13
(c)
(d)
Qn-4. Addition and Subtraction of Decimal.
(a) 2468.589 + 372
(b) 547892.302 – 37689.9
Qn-5. Addition and Subtraction of Fraction.
(a) +
(b) + +
(c) -
(d) - -
Qn-6. Addition and Subtraction of Fraction.
(a) 213.549 ÷ 7
(b) 23.56 × 2.8
(c) 2 – 2 ÷ 2
(d) 7 × 7 ÷ 14 – 7 + 9
Qn-7. Convert the Units.
(a) 5km into meters
(b) 56m into km
(c) 3 litres into millilitre
(d) 68cm into km
Qn-8. Solve the expression and find the value of x.
(a) x + 14 – 9 = 15 + 25 – 2
(b) x ÷ 14 × 7 = 31 – 2
(c) x × 7 = 14 ÷ 3
(d) x = [2 + {5 - 8(-2 × -3)} + 4]
(e) x = [3 -{6 -(-3 × -2)} + 4]
(f) x2 – 100 = –64
(g) (3 + 4 + × ) ÷ (9 + )
(h) (x + × ) = ( - × )
(i) 5x + = × –
(j) 3x ÷ + 2 = 19 × 2 ÷ 8 – 10
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