Subtraction "Across the Zeros" 4th Grade Math Lightboard
ฝัง
- เผยแพร่เมื่อ 10 ก.ย. 2017
- 4.NBT.B.4 Subtraction with regrouping. Always borrow before regrouping. When going across a zero, change it to a 9. When stopping at a zero, it becomes a 10.
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