Question
Identify the symmetrical instruments from your mathematical instrument box.
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Answer
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$(i)$
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$(ii)$
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$(iii)$
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$(iv)$
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$(v)$ |
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A protractor
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A divider
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A ruler (scale)
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A eraser
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A pencil |
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Similar questions
Solve the following equation and verify the answer: $\frac{\text{x}}{2}=\frac{\text{x}}{3}+1$
→Draw a line segment of length $10\ cm.$ Divide it into four equal parts. Measure each of these parts.
→Copy Figure on your notebook and draw a perpendicular to l through $P,$ using $(i)$ set squares $(ii)$ Protractor $(iii)$ ruler and compasses. How many such perpendiculars are you able to draw?
→Complete the addition-subtraction box.
Match the following columns on whole numbers:
→|
S.No.
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Column A
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S.No.
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Column B
|
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$(a)$
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$137 + 63 = 63 + 137$
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$(i)$
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Associativity of multiplication
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$(b)$
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$(16 \times 25)$ is a number
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$(ii)$
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Commutativity of multiplication
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$(c)$
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$365 \times 18 = 18 \times 365$
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$(iii)$
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Distributive law of multiplication over addition.
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$(d)$
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$(d) (86 \times 14) \times 25 = 86 \times (14 \times 25)$
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$(iv)$
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Commutativity of addition
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$(e)$
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$23 \times (80 + 5) = (23 \times 80) + (23 \times 5)$
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$(v)$
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Closure property for multiplication
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Use number line and add the integers: $9 + (-6).$
→Let $A, B$ be the centres of two circles of equal radii; draw them so that each one of them passes through the centre of the other. Let them intersect at $C$ and $D.$ Examine whether $\overline{\text{AB}}\text{ and}\ \overline{\text{CD}}$ are at right angles.
→Draw a line $AB$. Take a point $P$ on it. Draw a line passing through $P$ and perpendicular to $AB.$
→Draw a line segment AB of length 5.8 cm. Draw the perpendicular bisector of this line segment.
Comparing Numbers using Floors
Who is on the lowest floor?
1. Jay is in the Art Centre. So, he is on Floor +2.
2. Asin is in the Sports Centre. So, she is on Floor ______.
3. Binnu is in the Cinema Centre. So, she is on Floor ______.
4. Aman is in the toy shop. So, he is on ______.
Who is on the lowest floor?
1. Jay is in the Art Centre. So, he is on Floor +2.
2. Asin is in the Sports Centre. So, she is on Floor ______.
3. Binnu is in the Cinema Centre. So, she is on Floor ______.
4. Aman is in the toy shop. So, he is on ______.