Maths

Problems	Strategy	Answers
67x9	70x9=630 3x9=27 630-27=603	603
92x8	90x8=720 2x8=16 720+16=736	736
121x7	120x7=840 1x7=7 840+7=847	847
175x6	170x6=1020 5x6=30 1020+30=1050	1050
215x7	210x7=1470 5x7=35 1470+35=1505	1505

Maths

WALT: Sovle mulitiplication problem using various strategies

Problem	Strategy	Answer
28x9	20x9=180 8x9=72 180+72=252	252
59x15	50x10=500 50x5=250 9x10=90 9x5=45 500+250+90+45=885	885
43x7	40x7=280 3x7=21 301	301
81x9	80x9=720 1x9=9 720+9=729	729
62x17	60x10=600 60x7=420 2x10=20 2x7=14 600x420+20+14=1054	1054
39x15	30x10=300 30x5=150 9x10=90 9x5=45 300+150+90+45=585	585
87x9	80x9=720 7x9=63 720+63=783	783
67x33	60x30=1800 60x3=180 7x30=210 3x3=9 1800+180+210+9=2211	2211
63x7	60x7=420 3x7=21 441	441
75x9	70x9=630 5x9=45 675	675
55x10	50x10=500 5x10=50 500+50=550	550
92x9	90x9=810 2x9=18 810+18=828	828
53x8	50x8=400 3x8=24 400+24=424	424
92x5	90x5=450 2x5=10 450+10=460	460
41x9	40x9=360 1x9=9 360+9=369	369
72x7	70x7=490 2x7=14 490+14=504	504
91x8	90x8=720 1x8=8 720+8=728	728
33x9	30x9=270 3x9=27 270+27=297	297

Maths

Problem                                 | Strategy    | Answer

24x6	10x6=60 10x6=60 4x6=24 24+120=144	144
33x6	20x6=120 10x6=60 120+60=180 3x6=18 180+18=198	198
43x7	20x7=140 20x7=140 140+70+70+=280 3x7=21 280+21=301	301
62x7	20x7=140 20x7=140 20x7=140 140+140+140=380 2x7=14 14+380=394	434
56x9	20x9=180 20x9=180 10x9=90 180+180+90=450 6x9=54 450+54=504	504

Maths

Problem	Strategy	Answer
37x9	30x9=270 7x9=63 270+63=333	333
47x15	40x10=400 40x5=200 7x10=70 7x5=35 400+200+70+35=705	705
65x7	60x7=420 5x7=35 420+35	455
81x9	80x9=720 1x9=9	729
72x17	70x10=700 70x7=490 2x10=20 2x7=14 700+490+20+14=1224	1224
39x12	30x12=360 9x12=108 360+108=468	468
187x9	100x9=900 80x9=720 7x9=63 900+720+63=	1683
77x33	70x30=2100 70x3=210 7x30=210 7x3=21 2100+210+210+21=	2541