Question
Whole numbers are closed under ___________ and under ___________.
✓
Answer
Whole numbers are closed under addition and under multiplication.
Solution:
If $a$ and $b$ are any two whole numbers, then $a + b = c ($whole numbers$).$
Also, $a \times b = c ($whole numbers$)$
Solution:
If $a$ and $b$ are any two whole numbers, then $a + b = c ($whole numbers$).$
Also, $a \times b = c ($whole numbers$)$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Multiply: $32$ by $-21$
→Replace each * by the correct digit in the following:
$
\begin{array}{rrrrrrr}
1 & 0 & 0 & 0 & 0 & 0 & 0 \\
- & & * & * & * & * & 1 \\
\hline & * & 7 & 0 & 4 & 2 & * \\
\hline
\end{array}
$
→$
\begin{array}{rrrrrrr}
1 & 0 & 0 & 0 & 0 & 0 & 0 \\
- & & * & * & * & * & 1 \\
\hline & * & 7 & 0 & 4 & 2 & * \\
\hline
\end{array}
$
Fill in the blank:(___) $÷ 372 = 0$
→Write the fraction representing the shaded portion:
In Fig. Points lying in the interior of the triangle $PQR$ are ______, that in the exterior are ______ and that on the triangle itself are ______.
→In an equation, the $LHS$ is equal to the $RHS.$
→Insert comma suitably and write the names according to Indian System of Numeration:
$8546283$
→$8546283$
Write the following in Hindu-Arabic numeral:
$DCCLXVI$
→$DCCLXVI$
Two perpendiculars can be drawn to a given line from a point not lying on it.
Which factors are not included in the prime factorisation of a composite number?