Boys and girls, your challenge for this week is to choose 3 digits between 0-9 and create the 6 possible multiplication sums for them and mentally calculate the answer.
For example if I chose 3, 4 & 9 the possibilities are:
3 x 49 = 147 3 x 94 = 282
4 x 39= 156 4 x 93= 372
9 x 34 = 306 9x 43= 387
Have fun and I look forward to discussing your methods.
I chose 428
2×48=96 2×84=168
4×28=112 4×82=328
8×24=192 8×42=336
My numbers are 5,6 and 4,
5×64=320 5×46=230
6×45=270 6×54=324
4×56=224 4×65=260
8 x 45 = 360
4 x 58 = 232
5 x 84 = 420
8 x 54 = 432
4 x 85 = 340
5 x 48 = 240
my numbers are 6,7 and 8
7×68=476
6×78=468
8×76=608
7×86=602
6×87=522
8×67=536
9.6.3
9×63=567 9×36=324
6×93=558. 6×39=234
3×39=117 3×93=179
6,4,5
6 x 45 =270 6 x 54= 324 5 x 64 = 320
5 x 46 = 230 4 x 56 = 224 4 x 65 = 260
I have chosen the numbers 2, 5, 3
2 x 53 = 106
2 x 35 = 70
5 x 32 = 160
5 x 23 = 115
3 x 52 = 156
3 x 25 = 75
I chose 2, 3 and 6.
2×36=72 2×63=126
3×26=78 3×62=186
6×23=138 6×32=192
I chose 4,6,8.
4 x 68=272 4 x 86=344
6x 48 =288 6 x 84=504
8 x 64 =512 8 x 46 = 368
My numbers are 123
1×23=23
2×13=26
3×13=39
1×13=13
3×12=36
2×36=23
My numbers are 7,3 and 4
4×37=148 7×34=238 3×47=141
4×73=292 7×43=301 3×74=222
the answers for my three numbers are 3,5,6
3×56= 168. 5×36 = 180 .
6×53= 318 5×63 = 315
3×65= 195. 6×35 = 210
Numbers 2, 5,9
29×5=145, 92×5=460
25×9=225, 52×9=468
95×2=190, 59×2=118
I choose 3,6 &7
36 x7=252
7 x36=252
37 x6=222
6 x37=222
76 x3=228
3 x76=228
63 x7=441
7 x63=441
73 x6=438
6 x73=438
I’ve chosen a 3 dirt number 159
1 x 9 = 9, 1 x 5 = 5, 5 x 9 = 45, 5 x 1 = 5, 9 x 1= 9 and 9 x 5 =45
I choose 7,2,9
7×29=203
7×92=644
9×72=648
9×27=243
2×79=158
2×97=194
My numbers are 2,6,9
6 x 29=174 6×92=552
2×69=138 2×96=192
9×26=234 9×62=558
The numbers I picked were 5,9 and 7 and the sums and answers are
59 x 7= 413 97 x 5= 485 95 x 7= 665
79 x 5= 395 75 x 9= 675 57 x 9= 513
459
4×59=236
4×95=380
5×94=470
5×49=245
9×45=405
9×54=486
985
7×85= 595
7×58=406
5×78=390
5×87=435
8×57=456
8×75=600
Fabulous work Primary 6 and a very good follow up discussion in class.
Make sure you check over your answers before posting as there is the odd error here and there.
A very good response from the class, some in jotters too, let’s make sure that we keep up to date with our work as there is house points to be earned!