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Multiply by teens
Multiply by 20s
Multiply by 30s
Multiply by 40s
Steps to Multiply
100
26 x13
What is 338
100
68 x21
What is 1428
100
21 x37
What is 777
100
51 x42
What is 2142
100
multiply by tens
What is step 3
200
73 x15
What is 1095
200
24 x23
What is 552
200
24 x31
What is 744
200
37 x43
What is 1591
200
multiply by ones
What is Step 1
300
34 x13
What is 442
300
56 x21
What is 1176
300
39 x37
What is 1443
300
61 x41
What is 2501
300
Add
What is Step 4
400
68 x19
What is 1292
400
34 x23
What is 782
400
47 x32
What is 1504
400
62 x49
What is 3038
400
drop the zero
What is Step 3
500
27 x16
What is 432
500
71 x24
What is 1704
500
42 x39
What is 1638
500
72 x45
What is 3240
500
all 4 steps to multiply 2 digits by 2 digits
multiply the ones, drop the zero, multiply the tens and add