PencilGoGrade 2 · Math · Operations
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Grade 2 Math Worksheet - Building Confidence
Find the difference.
10 - 2 =
14 - 9 =
10 - 5 =
12 - 7 =
9 - 5 =
9 - 6 =
15 - 7 =
7 - 2 =
6 - 1 =
12 - 5 =
12 - 4 =
7 - 1 =
12 - 8 =
14 - 7 =
6 - 3 =
14 - 2 =
15 - 5 =
11 - 2 =
11 - 5 =
13 - 7 =
By the end of second grade children should know their subtraction facts within 20 so well that they can answer without counting on their fingers. That fluency is what makes two-digit and three-digit subtraction manageable later, because every column of a longer problem is really one small fact. This sheet is only subtraction facts, each written the same way, such as 13 - 6, with a line for the answer.
The facts that cross ten, like 15 - 8, are the ones children find hardest, and they are well represented here. Encourage a strategy rather than counting back one at a time: take away to the ten first (15 - 5 = 10), then take away the rest (10 - 3 = 7). Or think of the matching addition fact: 8 + 7 = 15, so 15 - 8 = 7. Do a few together, then let your child finish the page alone.
Common Core standard: 2.OA.B.2
For 15 - 8, take away 5 to reach 10, then take away 3 more. 10 - 3 = 7, so 15 - 8 = 7.
Counting back one at a time and losing track, which gives an answer that is one or two off.
Make ten first, or think of the addition fact that goes with it.
Counting back one at a time and losing track, which gives an answer that is one or two off.
Make ten first, or think of the addition fact that goes with it.
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Similar: One-Step Word Problems · Math Facts Fluency
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