The best is the people's education press last semester, multiplication and division each 100, do not need to get the number.

The best is the people's education press last semester, multiplication and division each 100, do not need to get the number.


145×12= 1、135×12= 2、176×46=
3、325×26= 4、237×83= 5、322×35=
Examples: 54 × 145 = 6, 36 × 254 = 7, 83 × 217=
8、43×129= 9、32×164= 10、25×328=
11、12×124= 12、85×215= 13、28×153=
14、85×142= 15、16×134= 16、34×246
Examples: 160 × 30 = 17, 220 × 40 = 18, 160 × 60=
19、180×50= 20、290×30= 21、460×80=
Example: 360 × 12 = 22, 390 × 14 = 23, 350 × 15=
24、320×16= 25、280×15= 26、430×26=
Example: 36 × 120 = 27, 18 × 230 = 28, 26 × 320=
29、23×340= 30、27×150= 31、87×410=
106 × 30 = 32, 206 × 40 = 33, 208 × 30=
34、305×50= 35、108×90= 36、209×60=
Examples: 73 × 207 = 37, 26 × 108 = 38, 25 × 306=
39、18×103= 40、69×105= 41、19×302=
640÷80= 15×5= 23×3= 2×2×5= 480÷80= 16×5= 27×3= 90÷15= 48÷4=
640÷16=
39÷3=
24×20=
32×3=
48÷16=
12×8=
27×3=
56÷14=
24÷8=
14×2=
83-45=
560÷80=
96÷24=
40÷20=
40×30=
37+26=
76-39=
605+59=
30×23=
12×8=
27+32=
48+27=
4500×20=
73+15 =
120×600 =
200×360=
6800×400=
280+270=
4×2500=
6000÷40=
5×1280=
310-70=
400×14=
470+180=
1000÷25=
160×600=
20×420=
290×300=
8100÷300=
7600÷200=
7600÷400=
680+270=
980÷14=
4200÷30=
6×1300=
1300×50=
200×48=
930-660=
530+280=
9200÷400=
840÷21=
180×500=
8000÷500 =
1900÷20=
200×160=
8700÷300=
300×330=
3×1400=
7000÷14=
600÷12=
9600÷80=
140×300=
8800÷40=
9600÷800=
750-290=
5×490=
760×20=
7500÷500=
370×200=
650÷13=
8600-4200=
240×4=
640÷80=
15×10=
12×11=
160×30=
220×40=
104×5=
4500÷50=
120×2=
90÷30=
270÷30=
270×30=
84÷21=
76÷9=
66÷7=
100-54=
123+15=
360÷4=
55÷5=
32×6= 7000÷70=
200÷40=
180÷30=
240÷40=
35×2=
140×7=
13×6=
280×3=
350×2=
50×11=
250×6=
7200+900=
410-201=
125×8=
48×20=
6600÷600=
390+140=
11×80=
24×50=
3600÷400= 4000÷50=
530-70=
420-90=
9600÷30=
7×700=
203+98=
1800÷300=
240+570=
4800÷400=
370+580=
580-490=
910-370=
25×8=
270-190=
36×2=
75÷25=
330÷11=
6×800=
5400÷9=
420÷60= 9×800=
3×330=
300×7=
9×500=
390÷13=
6300÷700=
5600÷700=
4800÷12=
3500÷7=
370+560=
520+490=
450-90=
80+330=
70×700=
7000÷70=
4000÷80=
2400÷200=
420-90=
170+320=
1000-51= 520-260=
910-190=
35×200=
22×200=
8800÷400=
9300÷300=
6×300=
1800÷200=
9300÷30=
280÷40=
304+199=
390÷26=
1250÷50=
21×40=
6600÷220=
760-198=
660-220=
5000÷50=
100×91=
753-299=
7000÷70=
200÷40=
180÷30=
240÷40=
35×2=
140×7=
13×6=
280×3=
350×2=
50×11=
250×6=
7200+900=
410-201=
125×8=
48×20=
6600÷600=
390+140=
11×80=
24×50=
3600÷400=
4000÷50=
530-70=
420-90=
9600÷30=
7×700=
203+98=
1800÷300=
240+570=
4800÷400=
370+580=
580-490=
910-370=
25×8=
270-190=
36×2=
75÷25=
330÷11=
6×800=
5400÷9=
420÷60=
9×800=
3×330=
300×7=
9×500=
390÷13=
6300÷700=
5600÷700=
4800÷12=
3500÷7=
370+560=
520+490=
450-90=
80+330=
70×700=
7000÷70=
4000÷80=
2400÷200=
420-90=
170+320=
520-260=
910-190=
35×200=
22×200=
8800÷400=
9300÷300=
6×300=
1800÷200=
9300÷30=
280÷40=
304+199=
390÷26=
1250÷50=
21×40=
6600÷220=
760-198=
660-220=
5000÷50=
100×91=
753-299=



Can you work out some written problems
100 written calculation questions,


15*20 26*18 0.15*36 36/18 256/16 368+91 275+33 36+91 50*36
15 123-98 32-5 17+55 36+78 52-19 65+13 26-8 123-56
* 20 360/20 25/5 69/23 78/3 45/5 135/9 56+6 23-14 36*8
__ 1___ 288+31 345+28 26/2 512/4 100/20 25*4 125*8 1000/8
300 45/5 13+99 59+64 987-555 325+659 985-623 345+165 65*2
46/2 44/4 22*5 32/4 35*7 5*98 326-54 123+65 654+25 56/4 45+2
641-88 89-50 13*13 11*12 12*12 36/12 3*65 78/6 32*5 64*2
156*65 64*10 10*10 102*56 502*17 605*12 301*55 209*31 809*11
45*60 602*19 31*15 216*9 360*4 156/4 64/8 2*60 120*4 310*4
642*7 45*12 31*4 501*12 350/7 321/3 360/40



Second year's written arithmetic in the second semester
Ask the second grade oral and written arithmetic questions,


Six hundred mental arithmetic and three hundred mental arithmetic are almost the same. This is also my homework. I'm in the fifth grade. Your daughter is so lazy. How easy it is in the second grade. For example, 12 + 56 = 68 is OK



Find the fraction formula
Three tenths minus two tenths plus two thirds plus seven tenths minus seven fifths
3/10—2/7+2/3+7/10—5/7.


3/10-2/7+2/3+7/10-5/7
=3/10+7/10-(2/7+5/7)+2/3
=1-1+2/3
=0+2/3
=2/3
[the hourglass 038 of the memory of mathematics lovers, the beauty of mathematics 2 and the members of the group who are materialized outside the language number will answer for you]
[if you don't understand, you can continue to ask this question]
If you are satisfied, please select it as the satisfactory answer in time



How to simplify this fraction formula?
13/7×11/8-3/7×13/8


13/7×11/8-3/7×13/8
=11/7×13/8-3/7×13/8
=(11/7-3/7)×13/8
=8/7×13/8
=13/7



Four operations
1 4 5 6
8 8 3 3
7 7 4 4


4 ÷ (1 - 5 ÷ 6)
8 ÷ (3 - 8 ÷ 3)
7 × (4 - 4 ÷ 7)



What should be paid attention to in the calculation of four operations?


Multiply and divide first, then add and subtract. If there are brackets, count inside the brackets first



Calculating 24 with four arithmetic
1,4,5,6


4 / [1 - (5 /6)]=24
6 / (5 / 4 - 1)=24
The guy on the first floor used software, and the same answer was given twice



Who has a simple problem of calculating the distribution law of multiplication in Grade Four


1)2 × 68 + 68 × 98 2)71 × 512 + 512 × 29 3)92 × 879 + 879 × 8 4)2 × 967 + 967 × 98 5)88 × 386 + 386 × 126)65 × 300 + 35 × 300 7)35 × 744 + 65 × 744 8)55 × 111 + 45 × 11...



Ten simple calculation questions of percentage in grade five


120%+89%+11%
34%+79%+21%+66%
134%-59%-34%
2-45%-55%
125%×68%×8
28×25%
(45%+25)×4
36%×1.7+1.7×64%
110÷8÷12.5%
12%×99