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1.直接写出得数。(每题1★)
13+21=
72-50=
88-42=
69-45=
17+32=
7+8=
25+72=
62+5=
58-37=
47-21=
71-1=
12+75=
76-53=
44+33=
6+22=
24+55=
8+4=
99-8=
46-30=
53+24=
78-76=
88-18=
27+70=
23+24=
85-5=
13-5=
98-65=
70+12=
65-23=
27+72=
13+21=
34
72-50=
22
88-42=
46
69-45=
24
17+32=
49
7+8=
15
25+72=
97
62+5=
67
58-37=
21
47-21=
26
71-1=
70
12+75=
87
76-53=
23
44+33=
77
6+22=
28
24+55=
79
8+4=
12
99-8=
91
46-30=
16
53+24=
77
78-76=
2
88-18=
70
27+70=
97
23+24=
47
85-5=
80
13-5=
8
98-65=
33
70+12=
82
65-23=
42
27+72=
99
答案
1.34 22 46 24 49 15
97 67 21 26 70 87
23 77 28 79 12 91
16 77 2 70 97 47
80 8 33 82 42 99
97 67 21 26 70 87
23 77 28 79 12 91
16 77 2 70 97 47
80 8 33 82 42 99
2.用竖式计算。(每题3★)
36+13=
93-32=
24+75=
46-25=
32+31=
55-33=
36+13=
93-32=
24+75=
46-25=
32+31=
55-33=
答案
2.49 61 99 21 63 22(竖式略)
