Free Printable 乘法公式

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Worksheets

乘法公式

Total questions: 15

Worksheet time: 18mins

Name

Class

Date

1.

$\left(a+2\right)\times\left(b+3\right)$ =?

a)

$3a+2b+6$

b)

$ab+3a+2b+6$

c)

$2a+3b+6$

d)

$ab+2a+3b+6$

2.

202x109答案與下列何者不相同？

a)

(200+2)x(100+9)

b)

(200+2)x(110-1)

c)

22018

d)

(200-2)x(100+9)

3.

5x(199+1) 答案和下列哪個選項不一樣?

a)

5x199-5

b)

1000

c)

5x199+5

4.

67x999的答案與哪個選項不相同？

a)

(70-3)x(1000-1)

b)

67x(1000-1)

c)

(60+7)x(1000-1)

d)

(100-33)x(1000+1)

5.

(a+b)x(c+d)=？

a)

ac+ad+bc+bd

b)

ac+ab+cd+bd

c)

ac-ad+bc-bd

d)

ac+ad-bc+bd

6.

$\left(a+b\right)^2=?$

a)

$a^2-2ab+b^2$

b)

$a^2+2ab+b^2$

c)

ac+ad+bc+bd

d)

$\left(a+b\right)\left(a-b\right)$

7.

$\left(a-b\right)^2=?$

a)

$a^2-2ab+b^2$

b)

$a^2+2ab+b^2$

c)

ac+ad+bc+bd

d)

$\left(a+b\right)\left(a-b\right)$

8.

$a^2-b^2=?$

a)

$a^2-2ab+b^2$

b)

$a^2+2ab+b^2$

c)

ac+ad+bc+bd

d)

$\left(a+b\right)\left(a-b\right)$

9.

$a^2+2ab+b^2=?$

a)

$\left(a+b\right)\left(c+d\right)$

b)

$a^2-b^2$

c)

$\left(a-b\right)^2$

d)

$\left(a+b\right)^2$

10.

$a^2-2ab+b^2=?$

a)

$\left(a+b\right)\left(c+d\right)$

b)

$a^2-b^2$

c)

$\left(a-b\right)^2$

d)

$\left(a+b\right)^2$

11.

$\left(a+b\right)\left(a-b\right)$ =?

a)

$\left(a+b\right)\left(c+d\right)$

b)

$a^2-b^2$

c)

$\left(a-b\right)^2$

d)

$\left(a+b\right)^2$

12.

$ac+ad+bc+bd$ =?

a)

$\left(a+b\right)\left(c+d\right)$

b)

$a^2-b^2$

c)

$\left(a-b\right)^2$

d)

$\left(a+b\right)^2$

13.

$99^2$ 的答案與下列何選項不相同？

a)

$\left(100-1\right)^2$

b)

$100^2-2\times100\times1+1^2$

c)

$100^2+2\times100\times1+1^2$

d)

$10000-200+1$

14.

93x199的答案與下列何者不相同？

a)

$\left(100-7\right)\times\left(200-1\right)$

b)

$93\times\left(200-1\right)$

c)

$\left(90+3\right)\times\left(200-1\right)$

d)

$\left(100-7\right)\times199$

e)

$90+3\times200-1$

15.

10001x9999的答案與下列何者不相同？

a)

$10001\times\left(10000-1\right)$

b)

$10000+1\times9999$

c)

$\left(10000+1\right)\times9999$

d)

$\left(10000+1\right)\times\left(10000-1\right)$

e)

$10000^2-1$

100 %

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