Second Grade’s Homework Assignments Week of October 23, 2011 Monday Reading Read for 20 minutes. Fill in the reading log. Math Subtraction-Using Doubles.

Presentation on theme: "Second Grade’s Homework Assignments Week of October 23, 2011 Monday Reading Read for 20 minutes. Fill in the reading log. Math Subtraction-Using Doubles."— Presentation transcript:

Name: _____________________ Date: ____________ Subtracting – Using Double 1.Notice the problem is a doubles fact. 2.The difference is the same as the subtrahend. 10 - 5 = 5 **You can also count up or count back to find the answer. 12 - 6 10 - 5 8 - 4 14 - 7 22 - 11 16 - 8 20 - 10 6 - 3 18 - 9 4 - 2 Use your doubles facts to help you find the difference quicker. 6 – 4 = ____ 16 – 6 = ____ 12 - 7 = ____ 10 - 4 = ____ 8 - 3 = ____ 14 - 6 = ____ 18 - 7 = ____ 20 - 11 = ____

Name: _____________________ Date: ____________ Subtracting 10 1.Notice that the problem is subtracting 10. 2. Take 1 ten away from the tens place. 3. The ones place stays the same. **You can also count up or count back to find the answer. 11 - 10 20 - 10 10 - 10 18 - 10 15 - 10 17 - 10 14 - 10 12 - 10 19 - 10 16 - 10 22 - 10 13 - 10 12 – 10 = ____ 15 – 10 = ____ 10 - 10= ____ 20 - 10= ____ 19 - 10= ____ 14 - 10 = ____ 16 - 10= ____ 18 - 10 = ____

Name: _____________________ Date: ____________ Subtracting 9 1.In your head, subtract 10. 2.Add 1 to the difference. **You can also count up or count back to find the answer. 10 - 9 13 - 9 17 - 9 20 - 9 16 - 9 9 - 9 11 - 9 19 - 9 18 - 9 12 - 9 20 - 9 14 - 9 15 – 9 = ____ 19 – 9 = ____ 17 - 9 = ____ 14 - 9 = ____ 20 - 9 = ____ 18 - 9 = ____ 16 - 9 = ____ 11 - 9 = ____

Name: _____________________ Date: ____________ Breaking Apart 10 1.Notice the problem is subtracting from 10 2.Think the subtrahend + ___ = 10 **If you can’t remember ___ + ___= 10, then use your other strategies and count up or count back to find the answer. 10 - 5 10 - 2 10 - 4 10 - 7 10 - 6 10 - 9 10 - 1 10 - 8 10 - 0 10 - 3 10 - 5 10 - 10 10 – 4 = ____ 10 – 8 = ____ 10 - 2 = ____ 10 - 6 = ____ 10 - 9 = ____ 10 - 3 = ____ 10 - 7 = ____ 10 - 5 = ____