Videos and solutions to help Grade 2 students learn how to use manipulatives to represent the composition of 10 ones as 1 ten with two-digit addends.
Common Core Standards: 2.NBT.2, 2.NBT.1, 2.NBT.3, 2.MD.8
Common Core Math Resources, Lesson Plans & Worksheets for all grades
Common Core Math Video Lessons, Math Worksheets and Games for Grade 2
Common Core Math Video Lessons, Math Worksheets and Games for all grades
1. Solve using mental math if you can. Use your place value chart and number disks to
solve those you cannot do mentally.
a. 4 + 9 = _____
30 + 9 = _____
34 + 9 = ______
34 + 49 = ______
2. Solve the following problems using your place value chart and number disks, composing a ten when necessary.
a. 21 + 9 = _____
22 + 9 = ______
i. 59 + 34 = _____
Solve using a place value chart.
3. Melissa has 36 more crayons than her brother. Her brother has 49 crayons. How many crayons does Melissa have?
5. Frank’s mother gave him $25 to save. If he already had $38 saved, how much money does Frank have saved now?