Grade 1Addition & Subtraction

1.NBT.C.6

Subtract whole tens from whole tens: 70 − 30.

Worksheets for this standard 1 topic

Subtract Within 1006 ways

The standard, officially

Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90 (positive or zero differences), using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.

Builds on

1.NBT.B.2Understand tens and ones

Leads to

2.OA.A.1Solve one- and two-step word problems 2.NBT.B.5Add and subtract within 100