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Mississippi Standards

Mississippi 3rd Grade Math Standards

All 33 Mississippi math standards for 3rd grade, each explained in plain English. The official wording is in Mississippi Department of Education's document, linked at the end of this page.

33 standards

Standards for Mathematical Practice

8 standards
3.SMP.1
Untangle two-step word problems with all four operations and persist, like finding the cost of 4 tickets at $6 each after a $5 coupon.
3.SMP.2
Link a story to multiplication or division and back, like writing 24 ÷ 4 for sharing 24 stickers among 4 friends and saying what the 6 means.
3.SMP.3
Justify answers about fractions, area or products with drawings and words, and judge whether a classmate's claim holds up, like 1/3 being bigger than 1/2.
3.SMP.4
Model real problems with arrays, equal groups, fraction strips or equations, like an array of 6 rows of 8 chairs for an assembly.
3.SMP.5
Choose tools such as rulers marked in quarter inches, clocks, square tiles and number lines to measure and solve problems.
3.SMP.6
Use exact math words and units, like square inches for area and minutes for elapsed time, and calculate carefully with facts within 100.
3.SMP.7
Use properties of operations as patterns, like solving 7 x 8 as 7 x 5 plus 7 x 3, or seeing a rectangle's area as rows times columns.
3.SMP.8
Notice repeated reasoning, like the pattern in the 9s facts or that any number times an even number is even, and use it to work faster.

Operations and Algebraic Thinking

9 standards
3.OA.1
Read a multiplication fact as equal groups, like 5 × 7 as 5 groups of 7 objects.
Common Core 3.OA.1
3.OA.2
Read a division fact as sharing or grouping, like 56 ÷ 8 as 56 objects split into 8 equal shares.
Common Core 3.OA.2
3.OA.3
Solve word problems about equal groups, arrays and measurements by multiplying or dividing within 100.
Common Core 3.OA.3
3.OA.4
Find the missing number in a multiplication or division equation with factors 0 to 10, like 7 x ? = 42 or 4 = ? ÷ 6.
3.OA.5
Use number properties as shortcuts, like knowing 4 × 6 from 6 × 4 or finding 8 × 7 as 8 × 5 plus 8 × 2.
Common Core 3.OA.5
3.OA.6
Treat division as finding a missing factor, like solving 42 ÷ 6 by asking 6 times what equals 42, in problems with no remainder.
3.OA.7
Multiply and divide within 100 quickly using fact families or properties, know all one-digit products by heart, and understand division that leaves no remainder.
3.OA.8
Solve two-step word problems with all four operations, including whole-dollar amounts, write equations with a letter for the unknown, and check answers by estimating.
3.OA.9
Spot patterns in the addition and multiplication tables and explain them, like why 4 times any number is even.
Common Core 3.OA.9

Number and Operations in Base Ten

3 standards
3.NBT.1
Round whole numbers to the nearest ten or hundred, like 347 to 350 or to 300.
Common Core 3.NBT.1
3.NBT.2
Add and subtract within 1000 quickly with place value strategies, including subtracting across zeros like 700 - 248, and solve problems with whole dollars.
3.NBT.3
Multiply a one-digit number by a multiple of ten from 10 to 90, like 5 × 60 or 9 × 80.
Common Core 3.NBT.3

Number and Operations—Fractions

3 standards
3.NF.1
Understand 1/4 as one of four equal parts of a whole, and 3/4 as three of those parts.
Common Core 3.NF.1
3.NF.2
Place fractions on a number line by splitting the space from 0 to 1 into equal parts and counting them off.
Common Core 3.NF.2
3.NF.3
Tell when two fractions are equivalent, like 1/2 and 2/4, write whole numbers as fractions, and compare fractions with the same numerator or denominator.
Common Core 3.NF.3

Measurement and Data

8 standards
3.MD.1
Tell time to the nearest minute and solve word problems about how many minutes pass between two times.
Common Core 3.MD.1
3.MD.2
Measure and estimate liquid volume and mass in grams, kilograms and liters, and solve one-step word problems with them.
Common Core 3.MD.2
3.MD.3
Draw picture graphs and bar graphs where one square stands for several items, and answer how many more or less questions from them.
Common Core 3.MD.3
3.MD.4
Measure lengths to the nearest half and quarter inch and show the measurements on a line plot.
Common Core 3.MD.4
3.MD.5
Understand area as the number of unit squares that cover a flat shape with no gaps or overlaps.
Common Core 3.MD.5
3.MD.6
Find the area of a shape by counting the unit squares that cover it, in square centimeters, meters, inches or feet.
Common Core 3.MD.6
3.MD.7
Find the area of a rectangle by multiplying its side lengths, and find the area of an L-shaped figure by splitting it into rectangles and adding.
Common Core 3.MD.7
3.MD.8
Solve perimeter problems for polygons, find a missing side length, and draw or build rectangles with equal perimeters but different areas, or the reverse.

Geometry

2 standards
3.G.1
Group shapes by shared features, see rhombuses, rectangles and squares as quadrilaterals, and draw four-sided shapes that fit none of those groups.
3.G.2
Split a shape into equal parts and name each part as a fraction of the whole, like one of 4 equal parts is 1/4 of the shape.
Common Core 3.G.2

The official Mississippi documents

The plain-English lines on this page are EMStudio's own explanations of Mississippi's standards, not the official wording, which Mississippi Department of Education publishes in the documents above. Codes and strand names identify each standard.