Whole number arithmetic

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Below are the addition and multiplication tables.
Commit these tables to memory, possibly practicing with flash cards.
You should have no trouble adding, subtracting, multiplying, and dividing single digit numbers.

ADDITION

0+0=0	O+1=1	0+2=2	0+3=3	0+4=4	0+5=5	0+6=6	0+7=7	0+8=8	0+9=9	0+10=10
1+0=1	1+1=2	1+2=3	1+3=4	1+4=5	1+5=6	1+6=7	1+7=8	1+8=9	1+9=10	1+10=11
2+0=2	2+1=3	2+2=4	2+3=5	2+4=6	2+5=7	2+6=8	2+7=9	2+8=10	2+9=11	2+10=12
3+0=3	3+1=4	3+2=5	3+3=6	3+4=7	3+5=8	3+6=9	3+7=10	3+8=11	3+9=12	3+10=13
4+0=4	4+1=5	4+2=6	4+3=7	4+4=8	4+5=9	4+6=10	4+7=11	4+8=12	4+9=13	4+10=14
5+0=5	5+1=6	5+2=7	5+3=8	5+4=9	5+5=10	5+6=11	5+7=12	5+8=13	5+9=14	5+10=15
6+0=6	6+1=7	6+2=8	6+3=9	6+4=10	6+5=11	6+6=12	6+7=13	6+8=14	6+9=15	6+10=16
7+0=7	7+1=8	7+2=9	7+3=10	7+4=11	7+5=12	7+6=13	7+7=14	7+8=15	7+9=16	7+10=17
8+0=8	8+1=9	8+2=10	8+3=11	8+4=12	8+5=13	8+6=14	8+7=15	8+8=16	8+9=17	8+10=18
9+0=9	9+1=10	9+2=11	9+3=12	9+4=13	9+5=14	9+6=15	9+7=16	9+8=17	9+9=18	9+10=19
10+0=10	10+1=11	10+2=12	10+3=13	10+4=14	10+5=15	10+6=16	10+7=17	10+8=18	10+9=19	10+10=20

Remember subtraction is just the opposite of addition

Examples
6+7=13 so 13-7=6 and 13-6=17
and
4+8=12 so 12-4=8 and 12-8=4

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MULTIPLICATION

0*0=0	O*1=0	0*2=0	0*3=0	0*4=0	0*5=0	0*6=0	0*7=0	0*8=0	0*9=0	0*10=0
1*0=0	1*1=1	1*2=2	1*3=3	1*4=4	1*5=5	1*6=6	1*7=7	1*8=8	1*9=9	1*10=10
2*0=0	2*1=2	2*2=4	2*3=6	2*4=8	2*5=10	2*6=12	2*7=14	2*8=16	2*9=18	2*10=20
3*0=0	3*1=3	3*2=6	3*3=9	3*4=12	3*5=15	3*6=18	3*7=21	3*8=24	3*9=27	3*10=30
4*0=0	4*1=4	4*2=8	4*3=12	4*4=16	4*5=20	4*6=24	4*7=28	4*8=32	4*9=36	4*10=40
5*0=0	5*1=5	5*2=10	5*3=15	5*4=20	5*5=25	5*6=30	5*7=35	5*8=40	5*9=45	5*10=50
6*0=0	6*1=6	6*2=12	6*3=18	6*4=24	6*5=30	6*6=36	6*7=42	6*8=48	6*9=54	6*10=60
7*0=0	7*1=7	7*2=14	7*3=21	7*4=28	7*5=35	7*6=42	7*7=49	7*8=56	7*9=63	7*10=70
8*0=0	8*1=8	8*2=16	8*3=24	8*4=32	8*5=40	8*6=48	8*7=56	8*8=64	8*9=72	8*10=80
9*0=0	9*1=9	9*2=18	9*3=27	9*4=36	9*5=45	9*6=54	9*7=63	9*8=72	9*9=81	9*10=90
10*0=0	10*1=10	10*2=20	10*3=30	10*4=40	10*5=50	10*6=60	10*7=70	10*8=80	10*9=90	10*10=100

Remember division is just the opposite of multiplication

Examples
6*7=42 so 42/7=6 and 42/6=7
and
4*8=12 so 32/4=8 and 32/8=4

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