Early 4th grade multiplication problems
I. A (TERC) Investigations homework sheet, assigned in late November [click to enlarge]:
II. The first 4th grade Singapore Math multiplications problems (Primary Mathematics, 4B workbook):
III. Extra Credit
How many points should a child get for answering "I memorized my multiplication tables" as his or her explanation for his or her answers to the Investigations problems?
Should Singapore Math teachers be concerned if a student attempts to solve the Singapore Math multiplication problems using Investigations-type "Array Cards"?