Answer:
If you have taken the time to think about a problem, you should ... methods that you use to solve a problem, the corrections that you make in your ... Davis says that adding a two-digit number to the two-digit number formed by ... in the table below, and plot points on the grid at right. 0 1/2. 1 2. 3. 4 t. 60. 200 ... not been broken.
Step-by-step explanation:
For example, since 2 is smaller than 4 and 4 is larger than 2, we can write: 2 < 4, which says the same ... If they have the same number of digits, compare the digits in the highest place value position ... If the digit is 0, 1, 2, 3, or 4 do not change the digit you underlined. ... estimate the sum: round the numbers , then add. 23 20.
