First, oral calculation.
2 1+50= 70- 1 1= 78- 17= 3 1+32=
26+40= 6×5= 4×4= 25+25=
95-20= 36+40= 83-83= 4×2=
75-40= 90-80= 50+37= 43+42=
27- 1 1= 37-3= 8+ 17= 55+45=
58+2= 46- 14= 3×3= 45+ 15=
90-29= 65+9= 43+37= 1× 1=
30+27= 7+36= 8+ 12= 10+22=
37-26= 72-7= 5+43= 38+22=
24-24= 4×3= 2×2= 60+35=
33-7= 49+ 1 1= 3×2= 6×2=
98+2= 12-7= 49+5 1= 38+ 12=
93-80= 96-8= 67+7= 27+35=
5×4= 4×6= 4+2= 40-2=
3×3+2= 4×5- 1= 6×6-7= 4×3+4=
Second, vertical calculation. (15)
90-27= 38+49= 50- 1 1=
16+28+39= 62-27- 16= 53-30+ 14=
Third, complete the following multiplication formula. (9 points)
One four () two () get six three five ()
() 5 13 () gives 944 ()
() Four is 85 () 25.56 ()
4. Fill in "+,"or ╳ "In".
3○3=9 1○ 1= 1 6○3=3 4○0=0
2○3=5 4○6=24 5○3= 15 1○2=2
I can calculate in tabular form. (18)
What is the sum of 1 and 6? What's the difference between 2,4 times the product of 6 and 8?
How much is 3.46 more than 28? How much is 4.34 more than 17?
5、 6、
Sixth, solve the problem:
1, boys 22, girls 2 1. 16 people participated in the relay race. How many people did not take part in the relay race?
2. Three groups * * * collected 94 soda bottles, one group collected 34 people, the second group collected 29 people, how many did the three groups collect?
3. I am 8 years old, my father is 35 years old, and how old are you when my father is 50?
4. How many flowers are there in a box?
5、
5 yuan, 3 yuan, 4 yuan? Yuan dynasty (1206- 1368)
(1) is more expensive than 6 yuan. how much is it? (4 points)
(2) How much are five bowls? (4 points)
(3) Please put forward the parallel calculation of the multiplication problem. (4 points)
?