幫我解決這些題

1.( )( )( ),people counted numbers in tens.(在古代）

2.Can you write these numbers ( )( )( ).(以不同的方法）

3.The pictuie ( )( ) a modern calcultor.(代表)

4.Acomputer can do a calculation ( )( )( ）。（非常快）

5.It is an abacus.(改為複數句子）（ ）

6.The little girl knows two languages.(對劃線部分提問,劃線的是two) ( )

7.My phone number is 25865281.(對劃線部分提問,劃線的是25865281)( )

8.Use your own computer.(改為否定句）

Rewrite these sentences with the help of the words in brackets.

1.Multiply 4 by 5,and you will get 20.(times / is)

( )

2.Add 3 and 9,and you'll get 12.(plus / equal)

( )

3.Subtract 2 from 10,and you'll get 8.(minus / is)

( )

4.Divide 8 by 4,and you'll get 2.(divided / equal)

( )

5.Keep quiet,please.(Don't / noise)

( )

Complete the following sentences.

1.One plus one is ( ).

2.Multiply six by six,and you have( ).

3.Seven times seven is ( )

4.Thirty divided by six is ( )

5.Forty minus ten equls ( )

6.Subtract three from nine,and you have ( ).

1.In ancient time
2.in different ways
3.stands for
4.in a flash
5.These are abacuses.
6.How many does know
7.Don't use
8.Can do
9.Which abacus
10.direct guide
11.What an

1.A 2.C 3.A 4.C 5.B

1，In ancient times

2，by different method