CCSS 5.NBT.B.5 Worksheets
Grade 5 · Number & Operations in Base Ten
Multiply multidigit whole numbers fluently using the standard algorithm.
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Deliver a whole lesson on 5.NBT.B.5 from a textbook-grade teaching unit, with a hook, worked examples, diagrams, misconceptions, and an exit ticket.
Teaching guide
Multiply multidigit whole numbers fluently using the standard algorithm.
Build multiplication as equal groups and arrays, then skip counting, then recall of facts. Show that the array shows why a × b = b × a.
Generated and checked in code, so it is correct.
Confusing the number of groups with the number in each group, and adding when a word problem implies repeated groups.