Quiz about เลขยกกำลัง ม.1

Question 1

$$2^3\ \ มีค่าเท่าไหร่$$

Accepted Answer

$$2 imes2 imes2$$

Answer

2+2+2

Answer

$$2 imes3$$

Answer

$$3 imes3 imes3$$

Question 2

$$12^5 imes12^3 imes12^{-4\ \ }มีค่าเท่ากับข้อใด$$

Accepted Answer

$$12^4$$

Answer

$$12^7$$

Answer

$$12^{12}$$

Answer

$$12^6$$

Question 3

$$3^6\div3\ มีค่าเท่ากับข้อใด$$

Accepted Answer

$$3^5$$

Answer

$$3^7$$

Answer

$$3^6$$

Answer

$$3^4$$

Question 4

$$\frac{5^2 imes5^5}{5^4}\ \ มีค่าเท่ากับข้อใด$$

Accepted Answer

$$5^3$$

Answer

$$5^2$$

Answer

$$5^5$$

Answer

$$5^6$$

Question 5

$$\left(12.4 imes10^8 ight)+\left(8.4 imes10^9 ight)\ เขียนในรูปสัญกรณ์วิทยาศาสตร์เท่ากับข้อใด$$

Accepted Answer

$$9.64 imes10^9$$

Answer

$$96.4 imes10^8$$

Answer

$$96.4 imes10^9$$

Answer

$$9.64 imes10^8$$

Question 6

$$5.18 imes10^5 imes2 imes10^{-9\ }เขียนในรูปสัญกรณ์วิทยาศาสตร์ได้ตามข้อใด$$

Accepted Answer

$$1.036 imes10^{-3}$$

Answer

$$10.36 imes10^{-5}$$

Answer

$$1.036 imes10^{-4}$$

Answer

$$103.6 imes10^{-4}$$

Question 7

$$\left(843 imes10^{-3} ight)\div\left(3 imes10^{-5} ight)$$

Accepted Answer

$$2.81 imes10^4$$

Answer

$$2.81 imes10^{-4}$$

Answer

$$2.81 imes10^{-2}$$

Answer

$$2.81 imes10^2$$

เลขยกกำลัง ม.1