3.4a; 3.4b

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

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3.4k; 3.5a

solve one-step and two-step problems involving multiplication and division within 100 using strategies based on objects; pictorial models, including arrays, area models, and equal groups; properties of operations; or recall of facts; represent one- and two-step problems involving addition and subtraction of whole numbers to 1,000 using pictorial models, number lines, and equations

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3.4d; 3.4e

determine the total number of objects when equally-sized groups of objects are combined or arranged in arrays up to 10 by 10; represent multiplication facts by using a variety of approaches such as repeated addition, equal-sized groups, arrays, area models, equal jumps on a number line, and skip counting

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3.5b; 3.5c

represent and solve one- and two-step multiplication and division problems within 100 using arrays, strip diagrams, and equations; describe a multiplication expression as a comparison such as 3 x 24 represents 3 times as much as 24

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3.4f; 3.4g

recall facts to multiply up to 10 by 10 with automaticity and recall the corresponding division facts; 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

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3.5d; 3.5e

determine the unknown whole number in a multiplication or division equation relating three whole numbers when the unknown is either a missing factor or product;

represent real-world relationships using number pairs in a table and verbal descriptions.

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3.4h; 3.4j

determine the number of objects in each group when a set of objects is partitioned into equal shares or a set of objects is shared equally; determine a quotient using the relationship between multiplication and division

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