Solve multi-step word problems using front-end estimation

Solve multi-step word problems using front-end estimation

In this lesson you will learn how to solve multi-step word problems by using front end estimation.

ADDITIONAL MATERIALS

STANDARDS

CCSS.4.OA.A.3 Solve multistep word problems posed with whole numbers and having whole-number answers using the four operations, including problems in which remainders must be interpreted. 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.

TEKS.5.3.A estimate to determine solutions to mathematical and real-world problems involving addition, subtraction, multiplication, or division;

TEKS.3.4.B round to the nearest 10 or 100 or use compatible numbers to estimate solutions to addition and subtraction problems;

TEKS.3.4.A solve with fluency one-step and two-step problems involving addition and subtraction within 1,000 using strategies based on place value, properties of operations, and the relationship between addition and subtraction;

TEKS.7.3.B apply and extend previous understandings of operations to solve problems using addition, subtraction, multiplication, and division of rational numbers.

TEKS.6.3.E multiply and divide positive rational numbers fluently.

TEKS.6.3.D add, subtract, multiply, and divide integers fluently; and

TEKS.5.4.B represent and solve multi-step problems involving the four operations with whole numbers using equations with a letter standing for the unknown quantity;

TEKS.5.3.K add and subtract positive rational numbers fluently; and

TEKS.4.5.A represent multi-step problems involving the four operations with whole numbers using strip diagrams and equations with a letter standing for the unknown quantity;

TEKS.4.4.H solve with fluency one- and two-step problems involving multiplication and division, including interpreting remainders.

TEKS.4.4.G round to the nearest 10, 100, or 1,000 or use compatible numbers to estimate solutions involving whole numbers; and

TEKS.4.4.D use strategies and algorithms, including the standard algorithm, to multiply up to a four-digit number by a one-digit number and to multiply a two-digit number by a two-digit number. Strategies may include mental math, partial products, and the commutative, associative, and distributive properties;

TEKS.3.5.A represent one- and two-step problems involving addition and subtraction of whole numbers to 1,000 using pictorial models, number lines, and equations;

TEKS.3.4.G use strategies and algorithms, including the standard algorithm, to multiply a two-digit number by a one-digit number. Strategies may include mental math, partial products, and the commutative, associative, and distributive properties;

VA.CE.7.3 The student will solve single-step and multistep practical problems, using proportional reasoning.

VA.CE.5.4 The student will create and solve single-step and multistep practical problems involving addition, subtraction, multiplication, and division of whole numbers.

VA.CE.3.3.a estimate and determine the sum or difference of two whole numbers; and

VA.CE.3.3.b create and solve single-step and multistep practical problems involving sums or differences of two whole numbers, each 9,999 or less.

VA.CE.4.4.b estimate and determine sums, differences, and products of whole numbers;