This is a mystery picture that is great for Halloween! In this activity, students first solve place value and addition problems. There are three versions:
The easiest are problems in this format: __ tens __ ones (ex. 6 tens 7 ones = 67).
The next version has some of the __ tens __ ones problems, as well as expanded notation (60 + 7), using doubles, adding 10 (57 + 10).
The first two versions use the 1-120 number chart.
3. The more challenging version uses a number chart ranging from 221-340. It has problems such as these: 2 hundreds 6 tens 7 ones, 200 + 60 + 7, 227 + 100, 257 + 10.
For all versions, students then color in these numbers on the appropriate chart to discover the mystery picture. All three versions have the same picture. The picture is a Halloween Jack-O'-Lantern.
Answer keys are included for all versions.
Update! In order to make the font size larger on the student problems, I updated this to have an option to print the student problems on two pages. The original one page version is still included also.
Common Core for Second Grade used in this activity: CCSS.MC2.NBTB.5 Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction. 2.NBT.3 Read and write numbers to 1000 using base-ten numerals, number names, and expanded form. 2.NBT.8 Mentally add 10 or 100 to a given number 100–900.
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