Mathematical Operation questions Practice Question and Answer
8 Q: After interchanging which two signs will the value of the given expression be ‘356’?
133 + 49 – 16 ÷ 2 × 34
815 06426b5967ac9a186e4de26da
6426b5967ac9a186e4de26da- 1+ and –true
- 2– and ÷false
- 3× and +false
- 4÷ and ×false
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Answer : 1. "+ and – "
Q: In a certain language, if '+' means 'subtraction', '×' means 'division', '÷' means 'addition', and '–' means 'multiplication', then find the value of the following expression (BODMAS rule does not apply in that language).
8 ÷ 16 × 4 + 2 – 3
811 06458f0047f8252086629244e
6458f0047f8252086629244e8 ÷ 16 × 4 + 2 – 3
- 11false
- 212true
- 39false
- 45false
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Answer : 2. "12"
Q: After interchanging which two signs will the value of the given expression be ‘35’?
13 + 91 − 3 ÷ 529 × 23
804 0642e9aa9dcb650c1457eda76
642e9aa9dcb650c1457eda76- 1+ and –false
- 2× and ÷true
- 3× and +false
- 4- and ÷false
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Answer : 2. "× and ÷"
Q: Select the correct combination of mathematical signs to replace the * signs and to balance the given equation.
14 * 5 *41 * 76 * 35
797 064491317cd6ea382cf86a038
64491317cd6ea382cf86a03814 * 5 *41 * 76 * 35
- 1×, −, =, +false
- 2×, +, −, =true
- 3−, +, =, ×false
- 4+, ×, =, −false
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Answer : 2. " ×, +, −, = "
Q:Direction: Some equations have been solved on the basis of certain system. Find the correct answer for the unsolved equation on that basis.
If 98 – 39 – 27 = 31, 87 – 38 – 34 = 20, then 79 – 25 – 12 = ?
788 0640b2a2986fd41614681a27e
640b2a2986fd41614681a27e- 151true
- 222false
- 342false
- 415false
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Answer : 1. "51 "
Q: Which two signs need to be interchanged to make the following equation correct?
73 – 13 × 42 ÷ 14 + 56 = 56
783 0643e7d4501d99786d0f0e227
643e7d4501d99786d0f0e227- 1+ and ×true
- 2× and ÷false
- 3– and +false
- 4– and ×false
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Answer : 1. "+ and ×"
Q: By interchanging the given two signs which of the following equation will be correct?
÷ and +
765 0647865bdd0c6d8fd0853292b
647865bdd0c6d8fd0853292b÷ and +
- 18 + 4 × 5 ÷ 2 – 6 = 7false
- 216 + 8 × 2 ÷ 6 – 4 = 8false
- 318 + 2 × 6 ÷ 3 – 7 = 50true
- 411 + 8 × 16 ÷ 4 – 7 = 20false
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Answer : 3. "18 + 2 × 6 ÷ 3 – 7 = 50"
Q: By Interchanging the given two numbers which of the following equation will be not correct?
3 and 8
764 064785d4cf295c14cc803f0cd
64785d4cf295c14cc803f0cd3 and 8
- 17 + 3 – 4 ÷ 2 × 8 = 9false
- 26 ÷ 2 × 8 + 3 – 1 = 17true
- 38 – 3 + 6 × 2 ÷ 4 = –2false
- 42 + 3 – 6 ÷ 2 × 8 = 1false
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