Interpret whole-number quotients of whole numbers.
Use place value understanding to round whole numbers to the nearest 10 or 100.
Represent a fraction a/b on a number line by marking of a lengths 1/b from 0. Recognize that the resulting interval has size a/b and that its endpoint locates the number a/b oin the number line.
Interpret products of whole numbers.
Recognize area as additive. Find areas of figures composed of non-overlapping rectangles, and apply this technique to solve real world problems.
Express whole numbers as fractions, and recognize fractions that are equivalent to whole numbers.
Recognize a plane figure which can be covered without gaps or overlaps by n unit squares is said to have an area of n square units.
Apply properties of operations as strategies to multiply and divide.
Understand a fraction, 1/b, as the quantity formed by 1 part when a whole is partitioned into b equal parts; understand a fraction a/b as the quantity formed by a parts of size 1/b.
Find the area of a rectangle with whole-number side lengths by tiling it, and show that the area is the same as would be found by multiplying the side lengths.
Understand division as an unknown-factor problem.
Partition shapes into parts with equal areas. Express the area of each part as a unit fraction of the whole.
Identify and extend arithmetic patterns (including patterns in the addition table or multiplication table).
Measure areas by counting unit squares.
Represent these problems using equations or expressions with a letter standing for the unknown quantity.
Recognize and generate equivalent fractions. Explain why the fractions are equivalent.
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