文字式まとめ

Authored by Yoshiyuki SUZUKI

Mathematics

7th Grade

Used 22+ times

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15 questions

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MULTIPLE CHOICE QUESTION

5 sec • 1 pt

文字式の表し方として誤っているものはどれか？

$\frac{2a}{3}$

$\frac{2}{3}a$

$2\frac{a}{3}$

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

$1g=?\ kg$

$100$

$0.01$

$1000$

$0.001$

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

単項式で，かけ合わされている文字の個数を，その式の何というか？

次数

字数

係数

指数

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

$5x^2-3x+7$ は何次式か？

5次式

3次式

2次式

FILL IN THE BLANKS QUESTION

10 sec • 1 pt

$a^2+3a+4$ の $a$ の係数を答えよ．

(a)

FILL IN THE BLANKS QUESTION

20 sec • 1 pt

同類項をまとめなさい．
$a-3+4a+2=?$

(a)

FILL IN THE BLANKS QUESTION

30 sec • 1 pt

次の計算をしなさい．
$\left(4a+2b\right)-\left(3a-7b\right)=?$

(a)

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

次の計算をしなさい．
$\frac{2a-1}{3}-\frac{3a-2}{4}=?$

$-a+2$

$\frac{-a+2}{12}$

$\frac{-a-10}{12}$

$-a-10$

$\frac{-a+1}{6}$

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

次の計算をしなさい．
$2a\times\left(-7a^2\right)=?$

$-14a^3$

$98a^3$

$-28a^3$

$-5a$

10.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

次の計算をしなさい．
$\frac{4}{3}x\div\frac{2}{15}y=?$

$10xy$

$\frac{10x}{y}$

$\frac{8xy}{45}$

$\frac{60x}{6y}$

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文字式まとめ

文字式の表し方として誤っているものはどれか？

1g=? kg1g=?\ kg1g=? kg

単項式で，かけ合わされている文字の個数を，その式の何というか？

5x2−3x+75x^2-3x+75x2−3x+7 は何次式か？

a2+3a+4a^2+3a+4a2+3a+4 の aaa の係数を答えよ． (a)

同類項をまとめなさい． a−3+4a+2=?a-3+4a+2=?a−3+4a+2=? (a)

次の計算をしなさい． (4a+2b)−(3a−7b)=?\left(4a+2b\right)-\left(3a-7b\right)=?(4a+2b)−(3a−7b)=? (a)

次の計算をしなさい． 2a−13−3a−24=?\frac{2a-1}{3}-\frac{3a-2}{4}=?32a−1​−43a−2​=?

次の計算をしなさい． 2a×(−7a2)=?2a\times\left(-7a^2\right)=?2a×(−7a2)=?

次の計算をしなさい． 43x÷215y=?\frac{4}{3}x\div\frac{2}{15}y=?34​x÷152​y=?

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$1g=?\ kg$

$5x^2-3x+7$ は何次式か？

$a^2+3a+4$ の $a$ の係数を答えよ．

(a)

同類項をまとめなさい．
$a-3+4a+2=?$

(a)

次の計算をしなさい．
$\left(4a+2b\right)-\left(3a-7b\right)=?$

(a)

次の計算をしなさい．
$\frac{2a-1}{3}-\frac{3a-2}{4}=?$

次の計算をしなさい．
$2a\times\left(-7a^2\right)=?$

次の計算をしなさい．
$\frac{4}{3}x\div\frac{2}{15}y=?$