Exponents These questions
will test your knowledge of operations using exponents. Fill in the blanks below with the correct number.
问答题
2 raised to the power of ______
=8
【正确答案】
【答案解析】The power that a number is raised to is equivalent to the number of times you
multiply that number by itself: 2×2×2 is equal to 8, so the answer is 2 raised
to the power of 3 (23).
问答题
33=______
【正确答案】
【答案解析】33, or 3 to the third power, means you must multiply 3×3×3, which
equals 27.
问答题
22×23=______
【正确答案】
【答案解析】Remember to add the exponents when multiplying exponential values with the same
base: 22×23=25=32.
问答题
125=59______
【正确答案】
【答案解析】53=5×5×5, which gives you 125.
问答题
(24)2=______
【正确答案】
【答案解析】When raising an exponent to another power, multiply the exponents (4×2=8). So,
the answer is 28, or 256.