Grade 4 - Progress in Mathematics

(Marvins-Underground-K-12) #1

Multiplication Models


4-2


Sharon uses 16 paper clips to make a
necklace. How many paper clips will she
need to make 2 necklaces?
Multiply: 2 16

16 16 2 tens 12 ones 3 tens 2 ones 30  2  32

2  16  32 Sharon needs 32 paper clips.

Holly makes a bracelet with 3 rows of
beads. Each row has 15 beads.
How many beads are in the bracelet?

There are 45 beads in the bracelet.

Ito wants to make 4 headbands.
Each headband uses 34 elastic bands.
How many elastic bands does he need?
Multiply: 4 34

4  3 tens 12 tens  120 4  4 ones 16 ones  16

120  16  136

4  34  136 Ito needs 136 elastic bands.

3  15
3 ( 10  5 )
(3  10 )  (3  5 )
30  15
45
3  15  45

Think
34  3 tens 4 ones

3

10 5






3.2

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