Fix the standard form

Exercise and reference answers

Questions

1. Statement parts

   1. 0.000035
   2. =
   3. 3.5
   4. x
   5. 10^5

   Correction

   10^-5 — a number below 1 needs a negative exponent

   Incorrect part

   10^5

2. Statement parts

   1. answer
   2. =
   3. 20
   4. x
   5. 10^8

   Correction

   2 — in standard form the first factor sits between 1 and 10

   Incorrect part

   20

3. Statement parts

   1. 10^4
   2. /
   3. 10^-5
   4. =
   5. 10^-1

   Correction

   10^9 — dividing subtracts the exponents, 4 minus -5

   Incorrect part

   10^-1

Instructions

One token in each line is wrong. Tap it, then read the correction.