Represent and solve problems involving multiplication and division. Interpret products of examples for 3 grade math numbers, e. 7 as the total number of objects in 5 groups of 7 objects each. Interpret whole-number quotients of whole numbers, e.
8 as the number of objects in each share when 56 objects are partitioned equally into 8 shares, or as a number of shares when 56 objects are partitioned into equal shares of 8 objects each. Use multiplication and division within 100 to solve word problems in situations involving equal groups, arrays, and measurement quantities, e. Determine the unknown whole number in a multiplication or division equation relating three whole numbers. Understand properties of multiplication and the relationship between multiplication and division.
Apply properties of operations as strategies to multiply and divide. Understand division as an unknown-factor problem. 8 by finding the number that makes 32 when multiplied by 8. By the end of Grade 3, know from memory all products of two one-digit numbers.
Solve problems involving the four operations, and identify and explain patterns in arithmetic. Solve two-step word problems using the four operations. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding. For example, observe that 4 times a number is always even, and explain why 4 times a number can be decomposed into two equal addends. 2 Students need not use formal terms for these properties.
Please click here for the ADA Compliant version of the Math Standards. Prentice Hall Pearson Prentice Hall and our other respected imprints provide educational materials, technologies, assessments and related services across the secondary curriculum. Take a closer look at the instructional resources we offer for secondary school classrooms. Use the Web Code found in your Pearson textbook to access supplementary online resources. Make free math worksheets for children. The Math Worksheet Wizard is a simple-to-use tool for teachers and parents. Your second-graders can put their numeracy skills to the test with a variety of worksheets that require totals and change to be worked out.