Addition +
1+
1 + 1 = 21 + 2 = 31 + 3 = 41 + 4 = 51 + 5 = 61 + 6 = 71 + 7 = 81 + 8 = 91 + 9 = 101 + 10 = 11
2+
2 + 1 = 32 + 2 = 42 + 3 = 52 + 4 = 62 + 5 = 72 + 6 = 82 + 7 = 92 + 8 = 102 + 9 = 112 + 10 = 12
3+
3 + 1 = 43 + 2 = 53 + 3 = 63 + 4 = 73 + 5 = 83 + 6 = 93 + 7 = 103 + 8 = 113 + 9 = 123 + 10 = 13
4+
4 + 1 = 54 + 2 = 64 + 3 = 74 + 4 = 84 + 5 = 94 + 6 = 104 + 7 = 114 + 8 = 124 + 9 = 134 + 10 = 14
5+
5 + 1 = 65 + 2 = 75 + 3 = 85 + 4 = 95 + 5 = 105 + 6 = 115 + 7 = 125 + 8 = 135 + 9 = 145 + 10 = 15
6+
6 + 1 = 76 + 2 = 86 + 3 = 96 + 4 = 106 + 5 = 116 + 6 = 126 + 7 = 136 + 8 = 146 + 9 = 156 + 10 = 16
7+
7 + 1 = 87 + 2 = 97 + 3 = 107 + 4 = 117 + 5 = 127 + 6 = 137 + 7 = 147 + 8 = 157 + 9 = 167 + 10 = 17
8+
8 + 1 = 98 + 2 = 108 + 3 = 118 + 4 = 128 + 5 = 138 + 6 = 148 + 7 = 158 + 8 = 168 + 9 = 178 + 10 = 18
9+
9 + 1 = 109 + 2 = 119 + 3 = 129 + 4 = 139 + 5 = 149 + 6 = 159 + 7 = 169 + 8 = 179 + 9 = 189 + 10 = 19
10+
10 + 1 = 1110 + 2 = 1210 + 3 = 1310 + 4 = 1410 + 5 = 1510 + 6 = 1610 + 7 = 1710 + 8 = 1810 + 9 = 1910 + 10 = 20
Subtraction -
1-
1 - 1 = 01 - 2 = -11 - 3 = -21 - 4 = -31 - 5 = -41 - 6 = -51 - 7 = -61 - 8 = -71 - 9 = -81 - 10 = -9
2-
2 - 1 = 12 - 2 = 02 - 3 = -12 - 4 = -22 - 5 = -32 - 6 = -42 - 7 = -52 - 8 = -62 - 9 = -72 - 10 = -8
3-
3 - 1 = 23 - 2 = 13 - 3 = 03 - 4 = -13 - 5 = -23 - 6 = -33 - 7 = -43 - 8 = -53 - 9 = -63 - 10 = -7
4-
4 - 1 = 34 - 2 = 24 - 3 = 14 - 4 = 04 - 5 = -14 - 6 = -24 - 7 = -34 - 8 = -44 - 9 = -54 - 10 = -6
5-
5 - 1 = 45 - 2 = 35 - 3 = 25 - 4 = 15 - 5 = 05 - 6 = -15 - 7 = -25 - 8 = -35 - 9 = -45 - 10 = -5
6-
6 - 1 = 56 - 2 = 46 - 3 = 36 - 4 = 26 - 5 = 16 - 6 = 06 - 7 = -16 - 8 = -26 - 9 = -36 - 10 = -4
7-
7 - 1 = 67 - 2 = 57 - 3 = 47 - 4 = 37 - 5 = 27 - 6 = 17 - 7 = 07 - 8 = -17 - 9 = -27 - 10 = -3
8-
8 - 1 = 78 - 2 = 68 - 3 = 58 - 4 = 48 - 5 = 38 - 6 = 28 - 7 = 18 - 8 = 08 - 9 = -18 - 10 = -2
9-
9 - 1 = 89 - 2 = 79 - 3 = 69 - 4 = 59 - 5 = 49 - 6 = 39 - 7 = 29 - 8 = 19 - 9 = 09 - 10 = -1
10-
10 - 1 = 910 - 2 = 810 - 3 = 710 - 4 = 610 - 5 = 510 - 6 = 410 - 7 = 310 - 8 = 210 - 9 = 110 - 10 = 0
Multiplication x
1x
1 x 1 = 11 x 2 = 21 x 3 = 31 x 4 = 41 x 5 = 51 x 6 = 61 x 7 = 71 x 8 = 81 x 9 = 91 x 10 = 10
2x
2 x 1 = 22 x 2 = 42 x 3 = 62 x 4 = 82 x 5 = 102 x 6 = 122 x 7 = 142 x 8 = 162 x 9 = 182 x 10 = 20
3x
3 x 1 = 33 x 2 = 63 x 3 = 93 x 4 = 123 x 5 = 153 x 6 = 183 x 7 = 213 x 8 = 243 x 9 = 273 x 10 = 30
4x
4 x 1 = 44 x 2 = 84 x 3 = 124 x 4 = 164 x 5 = 204 x 6 = 244 x 7 = 284 x 8 = 324 x 9 = 364 x 10 = 40
5x
5 x 1 = 55 x 2 = 105 x 3 = 155 x 4 = 205 x 5 = 255 x 6 = 305 x 7 = 355 x 8 = 405 x 9 = 455 x 10 = 50
6x
6 x 1 = 66 x 2 = 126 x 3 = 186 x 4 = 246 x 5 = 306 x 6 = 366 x 7 = 426 x 8 = 486 x 9 = 546 x 10 = 60
7x
7 x 1 = 77 x 2 = 147 x 3 = 217 x 4 = 287 x 5 = 357 x 6 = 427 x 7 = 497 x 8 = 567 x 9 = 637 x 10 = 70
8x
8 x 1 = 88 x 2 = 168 x 3 = 248 x 4 = 328 x 5 = 408 x 6 = 488 x 7 = 568 x 8 = 648 x 9 = 728 x 10 = 80
9x
9 x 1 = 99 x 2 = 189 x 3 = 279 x 4 = 369 x 5 = 459 x 6 = 549 x 7 = 639 x 8 = 729 x 9 = 819 x 10 = 90
10x
10 x 1 = 1010 x 2 = 2010 x 3 = 3010 x 4 = 4010 x 5 = 5010 x 6 = 6010 x 7 = 7010 x 8 = 8010 x 9 = 9010 x 10 = 100
Division ÷
1÷
1 ÷ 1 = 1 (1/1)1 ÷ 2 = 0.50 (1/2)1 ÷ 3 = 0.33 (1/3)1 ÷ 4 = 0.25 (1/4)1 ÷ 5 = 0.20 (1/5)1 ÷ 6 = 0.17 (1/6)1 ÷ 7 = 0.14 (1/7)1 ÷ 8 = 0.13 (1/8)1 ÷ 9 = 0.11 (1/9)1 ÷ 10 = 0.10 (1/10)
2÷
2 ÷ 1 = 2 (2/1)2 ÷ 2 = 1 (1/1)2 ÷ 3 = 0.67 (2/3)2 ÷ 4 = 0.50 (1/2)2 ÷ 5 = 0.40 (2/5)2 ÷ 6 = 0.33 (1/3)2 ÷ 7 = 0.29 (2/7)2 ÷ 8 = 0.25 (1/4)2 ÷ 9 = 0.22 (2/9)2 ÷ 10 = 0.20 (1/5)
3÷
3 ÷ 1 = 3 (3/1)3 ÷ 2 = 1.50 (3/2)3 ÷ 3 = 1 (1/1)3 ÷ 4 = 0.75 (3/4)3 ÷ 5 = 0.60 (3/5)3 ÷ 6 = 0.50 (1/2)3 ÷ 7 = 0.43 (3/7)3 ÷ 8 = 0.38 (3/8)3 ÷ 9 = 0.33 (1/3)3 ÷ 10 = 0.30 (3/10)
4÷
4 ÷ 1 = 4 (4/1)4 ÷ 2 = 2 (2/1)4 ÷ 3 = 1.33 (4/3)4 ÷ 4 = 1 (1/1)4 ÷ 5 = 0.80 (4/5)4 ÷ 6 = 0.67 (2/3)4 ÷ 7 = 0.57 (4/7)4 ÷ 8 = 0.50 (1/2)4 ÷ 9 = 0.44 (4/9)4 ÷ 10 = 0.40 (2/5)
5÷
5 ÷ 1 = 5 (5/1)5 ÷ 2 = 2.50 (5/2)5 ÷ 3 = 1.67 (5/3)5 ÷ 4 = 1.25 (5/4)5 ÷ 5 = 1 (1/1)5 ÷ 6 = 0.83 (5/6)5 ÷ 7 = 0.71 (5/7)5 ÷ 8 = 0.63 (5/8)5 ÷ 9 = 0.56 (5/9)5 ÷ 10 = 0.50 (1/2)
6÷
6 ÷ 1 = 6 (6/1)6 ÷ 2 = 3 (3/1)6 ÷ 3 = 2 (2/1)6 ÷ 4 = 1.50 (3/2)6 ÷ 5 = 1.20 (6/5)6 ÷ 6 = 1 (1/1)6 ÷ 7 = 0.86 (6/7)6 ÷ 8 = 0.75 (3/4)6 ÷ 9 = 0.67 (2/3)6 ÷ 10 = 0.60 (3/5)
7÷
7 ÷ 1 = 7 (7/1)7 ÷ 2 = 3.50 (7/2)7 ÷ 3 = 2.33 (7/3)7 ÷ 4 = 1.75 (7/4)7 ÷ 5 = 1.40 (7/5)7 ÷ 6 = 1.17 (7/6)7 ÷ 7 = 1 (1/1)7 ÷ 8 = 0.88 (7/8)7 ÷ 9 = 0.78 (7/9)7 ÷ 10 = 0.70 (7/10)
8÷
8 ÷ 1 = 8 (8/1)8 ÷ 2 = 4 (4/1)8 ÷ 3 = 2.67 (8/3)8 ÷ 4 = 2 (2/1)8 ÷ 5 = 1.60 (8/5)8 ÷ 6 = 1.33 (4/3)8 ÷ 7 = 1.14 (8/7)8 ÷ 8 = 1 (1/1)8 ÷ 9 = 0.89 (8/9)8 ÷ 10 = 0.80 (4/5)
9÷
9 ÷ 1 = 9 (9/1)9 ÷ 2 = 4.50 (9/2)9 ÷ 3 = 3 (3/1)9 ÷ 4 = 2.25 (9/4)9 ÷ 5 = 1.80 (9/5)9 ÷ 6 = 1.50 (3/2)9 ÷ 7 = 1.29 (9/7)9 ÷ 8 = 1.13 (9/8)9 ÷ 9 = 1 (1/1)9 ÷ 10 = 0.90 (9/10)
10÷
10 ÷ 1 = 10 (10/1)10 ÷ 2 = 5 (5/1)10 ÷ 3 = 3.33 (10/3)10 ÷ 4 = 2.50 (5/2)10 ÷ 5 = 2 (2/1)10 ÷ 6 = 1.67 (5/3)10 ÷ 7 = 1.43 (10/7)10 ÷ 8 = 1.25 (5/4)10 ÷ 9 = 1.11 (10/9)10 ÷ 10 = 1 (1/1)