2. Addition

2.01 Single digit fact families

2.02 Counting on

2.03 Addition and number lines

2.04 Addition strategies

2.05 Estimation first

2.06 Addition using algorithm

2.07 Addition with regrouping

PRACTICE: Addition

United States of America Tennessee

Grade 3

2.05 Estimation first

Interactive practice questions

The number $29$29 is plotted on the number line.

Round $29$29 to the nearest $10$10 and plot it on the blank number line.

Easy

< 1min

Round $427$427 to the nearest ten.

Easy

< 1min

Round $255$255 to the nearest hundred.

Easy

< 1min

Is the number $647$647 closer to $600$600 or $700$700?

Easy

< 1min

Outcomes

3.OA.D.8

Solve two-step contextual 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 (See Table 1 - Addition and Subtraction Situations and Table 2 - Multiplication and Division Situations).

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