Not sure about expaned form. In expanded form it can have a maximum of six. Some people do not include addends whose value is zero.
Thus, 120456 can be written as
1*105 + 2*104 + 0*103 + 4*102 + 5*101 + 6*100
or
1*105 + 2*104 + 4*102 + 5*101 + 6*100.
Expaned form
yes.
To write 12.38 in expanded form, you break it down by place value. It can be expressed as 10 + 2 + 0.3 + 0.08. This shows the value of each digit in the number according to its position.
log17.0002
Any two digit number in which: (a) the units digit is not 0, and (b) the two digits are different will form a new 2-digit number when the digits are interchanged.
20.0+3.0+0.005
700+1+4
The digit underlined in the number 3.100 is the number 1. In word form, the number 1 is spelled as "one." So, the digit underlined in the number 3.100 in word form is "one."
Six of them.
Every square of a 4 digit number has more than four digits.
40+4+0.8+0.01+0.005
157 is already prime. No factorization.