A set of 16 I Have/Who Has cards that help to consolidate doubling and halving numbers to 25. Designed to use whole class in pairs to promote discussion and support the less able; or in smaller groups for further review work. Aligned with Common Core State Standards: 1.NBT.4, Number and Operations in Base Ten.
I Have/Who Has Cards
Subject
Math — Number and Operations in Base 10
Grade Level
Grades K-2
Resource Type
Activity
Standards Alignment
Common Core State Standards
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Standards
Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, 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. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.
Double cards
Great cards that saved me a lot of time. I may add some harder doubles and halves. If I do I'll add to the site.
SML Member
February 24, 2008
Excellent resource
Fantastic resource-saved me lots of time :-)thanks for sharing it!!
SML Member
November 17, 2007
