Multiplying one and two digit and two and two digit numbers

48 x 27

• 1,286

• 1,296

• 1,386

• 1,283

Tags

CCSS.5.NBT.B.5

63 x 7

• 431

• 441

• 451

• 461

Tags

CCSS.4.NBT.B.5

21 x 3

• 43

• 73

• 91

• 63

Tags

CCSS.4.NBT.B.5

47 x 6

• 282

• 228

• 272

• 227

Tags

CCSS.4.NBT.B.5

17 x 13

• 121

• 221

• 211

• 111

Tags

CCSS.4.NBT.B.5

38 x 9

• 432

• 342

• 829

• 242

Tags

CCSS.4.NBT.B.5

93 x 51

• 4,743

• 4,347

• 4,473

• 4,437

Tags

CCSS.5.NBT.B.5

What is the next step?

• We are done

• Add zero

• Multiply 1 and 1

• Multiply 1 and 2

Tags

CCSS.4.NBT.B.5

Why do we add a zero when we multiply the number from the top by the ten digit number at the bottom?

• The number would be worth less if we add zero before we mutilply the second number at the bottom to the numbers on top

• If we don't then multiply the number would be worth less than what it should be

• We just have to do it

Tags

CCSS.4.NBT.B.5

31 x 8

• 482

• 248

• 428

• 284

Tags

CCSS.4.NBT.B.5