First Grade Common Core Math Task Cards 1 NBT.5 Mentally Find 10 More or 10 Less 1.NBT.5 Practice provides two ways for students to practice solving place value word problems that require mentally finding 10 more or 10 less than a given number.
Includes 40 unique Task Cards with 20 being multiple choice and 20 fill-in the blank!
Includes both a student answer sheet as well as matching layout (easier to grade) answer key! Cards are numbered so that answers on student sheet will be in proper order. Cards are 4 to a page and can be printed in both color or gray-scale (I tried both!) Don't forget to laminate so they will last for years!
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Standard 1.NBT.5 Use place value understanding and properties of operations to add and subtract.
5. Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.