# Q p

#### PD

𓚂\ɂꍇ́Ã{^ĂB

(1) ̐ʂAgŕ\܂傤B
(1) TOO~Ă܂B~gƂ̎c͂łB
(2) POOy[W̖{y[Wǂ񂾂Ƃ̎c̃y[W͉y[WłB
(3) SlNXłQlȂ܂BoȂk͉lłB
(4) PŐC℃ŁAPPɂ͂R℃Ȃ܂BPP̋C͉℃łB
(5) ~ĂāA~gƂ̎c͂łB
(6) y[W̖{y[Wǂ񂾂Ƃ̎c̃y[W͉y[WłB
(7) w_Ɖp_̍v_͉_łB
(8) PNX̐ll̃NXŁAq̐ll̂ƂAjq̐l͉lłB

(1)$500-x$  i~j
(2)$100-y$  iy[Wj
(3)$n-2$  ilj
(4)$t+3$  i℃j
(5)$y-x$  i~j
(6)$b-a$  iy[Wj
(7)$x+y+z$  i_j
(8)$y-x$  ilj

(2) ̎A̕\ɂĕ\܂傤B
(1) PPQO~̃m[gƂ̑͂łB
(2) Pӂ͉̐̎̒łB
(3) cUA̖̒ʐς $cm^2$  łB
(4) P{~̉MT{ƂPOO~̏SPƂ̑͂łB
(5) ̃{ARlœ܂B̂ƂAPl̃{͉łB
(6) ROOy[W̖{PPTy[Wԓǂ݂܂Bc̃y[W͉y[WłB
(7) POO~d݂ATO~d݂Ƃ̍vz͂łB
(8) Tl~oAXO~̃`R܂Bc͂łB

(1)$120x$  i~j
(2)$4a$  icmj
(3)$6y$  i$cm^2$  j
(4)$5x+100$  i~j
(5)$\dfrac {x} {3}$  ij
(6)$300-15n$  iy[Wj
(7)$100a+50b$  i~j
(8)$5x-90y$  i~j

(3) ̎̍ƌW͂ȂłB
(1)$2x-3$
(2)$-4x+\dfrac {1} {2} y$
(3)$a-2b+3cd$
(4)$-5x^2 -y^2 -5$

(1) F$2x$C $-3$
̌W͂Q

(2) F$-4x$C $\dfrac {1} {2} y$
̌Ẃ|SC ̌W$\dfrac {1} {2}$

(3) F$a$C $-2b$C $3cd$
̌W͂PC ̌Ẃ|QC ̌W͂R

(4) F$-5x^2$  C $-y^2$  C $-5$
$x^2$  ̌Ẃ|TC$y^2$  ̌Ẃ|P

(4) ̎A̕\ɂĕ\܂傤B
(1)$5\times x$
(2)$\left(-2\right)\times y$
(3)$a\times 8$
(4)$y\times x$
(5)$b\times a\times \left(-1\right)$
(6)$a\times a\times a$
(7)$3\times a\times a\times b$
(8)$x\times \left(-7\right)\times y\times x$

(1)$5\times x$
$=5x$

(2)$\left(-2\right)\times y$
$=-2y$

(3)$a\times 8$
$=8a$

(4)$y\times x$
$=xy$

(5)$b\times a\times \left(-1\right)$
$=-ab$

(6)$a\times a\times a$
$=a^3$

(7)$3\times a\times a\times b$
$=3a^2 b$

(8)$x\times \left(-7\right)\times y\times x$
$=-7x^2 y$

(5) ̎A̕\ɂĕ\܂傤B
(1)$x\div 2$
(2)$b\div c$
(3)$5\div a$
(4)$7x\div 8$
(5)$\left(x-y \right)\div z$
(6)$q\div \left(s+t \right)$
(7)$a\div 2b$
(8)$x^2 \div y$

(1)$x\div 2$
$=\dfrac {x} {2}$

(2)$b\div c$
$=\dfrac {b} {c}$

(3)$5\div a$
$=\dfrac {5} {a}$

(4)$7x\div 8$
$=\dfrac {7x} {8}$

(5)$\left(x-y\right)\div z$
$=\dfrac {x-y} {z}$

(6)$q\div \left(s+t\right)$
$=\dfrac {q} {s+t}$

(7)$a\div 2b$
$=\dfrac {a} {2b}$

(8)$x^2 \div y$
$=\dfrac {x^2} {y}$