multiplication
7 x 4
28
3 • (5 + y)
39
371 - 356
15
9 x 7
63
9 • (3 + y)
99
452 - 245
207
6 x 8
48
7 • (5 + y)
91
654 - 207
447
12 x 7
84
6 • (10+ y)
108
757 - 201
556
23 x 64
if you need help here Step One: Line Up All the Digits. First, line up all of the numbers according to their place value. Step Two: Multiply by the Ones Digit. Step Three: Add a Zero Place Holder. Step Four: Multiply by the Tens Digit. Step Five: Add the Two Answer Rows Together.
1,472
8 • (6 + y)
112
777 - 199
578