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คิดเลขเร็ว2

Mathematics

7th - 9th Grade

Used 96+ times

คิดเลขเร็ว2
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10 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 (12)×9=...\left(-12\right)\times9=...  

108

-108

81

-81

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 20×5=...20\times5=...  

25

-25

100

-100

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 9×(11)=...9\times\left(-11\right)=...  

-99

99

20

-20

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 (30)×(8)=...(-30)\times(-8)=...  

38

-38

-240

240

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 (40)×5=...(-40)\times5=...  

200

-200

45

-45

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 30÷6=...30\div6=...  

5

-5

6

-6

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 (21)÷3=...(-21)\div3=...  

4

-4

7

-7

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