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10+/10- and 1+/1-

Grades: 2nd Grade, 1st Grade

Subjects: Math

Standards: Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used. (1.NBT.5.)

Student Instructions

1. On pages 1, watch Jack Hartman's video 10 more 10 less OR click the link below ⬇️: https://www.youtube.com/embed/zau4jtSA_kY 2. Use the drawing or label to write the numbers 10+ and 10- and 1+ and 1- in the boxes around the middle number. 3. Tap the green check to turn in your work.

Teacher Notes (not visible to students)

Students show their understanding of numbers 10 more, 10 less, 1 more, and 1 less.

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10+/10- and 1+/1-

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