Two-Digit by Two-Digit Multiplication Challenge

What is the learning target for today's lesson?

• I can represent two-digit by two-digit multiplication using the area model.

• I can solve addition problems using the standard method.

• I can divide two-digit numbers by single-digit numbers.

• I can subtract two-digit numbers using the area model.

Tags

CCSS.3.OA.C.7

Which method is also known as the standard method of two-digit by two-digit multiplication?

• Lattice Method

• Area Model

• Turtle Head Method

• Partial Products Method

Tags

CCSS.4.NBT.B.5

In the area model, what is the product of 20 and 30?

• 50

• 6000

• 600

• 60

Tags

CCSS.4.NBT.B.5

What is the first step in the turtle head method?

• Draw the turtle head

• Multiply the tens

• Draw a collar

• Add a zero

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

In the turtle head method, what do you do after multiplying the numbers in the neck?

• Multiply the tens

• Cross off carried numbers

• Draw a collar

• Add a zero

Tags

CCSS.4.NBT.B.5

What is the product of 4 and 7 in the turtle head method example?

• 28

• 21

• 14

• 35

Tags

CCSS.3.OA.C.7

In the turtle head method, why do you add a zero after drawing the collar?

• To multiply the ones again

• To hold the place value of the ones

• To skip the tens

• To finish the problem

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the final answer for the problem 52 * 34 using the turtle head method?

• 1,875

• 1,568

• 1,478

• 1,768

Tags

CCSS.5.NBT.B.5

What should you do if there is no place to carry a number in the turtle head method?

• Add it to the next number

• Multiply it again

• Write it out at the bottom

• Ignore it

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Which method involves fewer steps, the area model or the turtle head method?

• Both are the same

• Area Model

• Neither

• Turtle Head Method

Tags

CCSS.4.NBT.B.5