2025年通城学典计算能手四年级数学上册苏教版江苏专版第89页答案
一、口算。
76 + 44 =
120
90 - 71 =
19
17×40 =
680

630÷21 =
30
700÷35 =
20
55 + 35 =
90

150×7 =
1050
65×40 =
2600
720÷6 =
120

8000÷400 =
20
480÷6 =
80
38×20 =
760

59 + 13 =
72
42×30 =
1260
56 + 24 =
80

126÷3 =
42
552÷8 =
69
360÷18 =
20

43×2 =
86
18×50 =
900
105×6 =
630

420÷14 =
30
520÷13 =
40
3500÷500 =
7

答案

一、120 19 680 30 20 90 1050 2600 120 20 80 760 72 1260 80 42 69 20 86 900 630 30 40 7
二、计算下面各题。
36×24÷32 + 346 75 + (322 - 218)×6 903 - [345 + (134 - 88)]
(600÷20 + 150)÷15 290 - 792÷44 + 86 [19 + (341 - 275)]×13

答案

二、373 699 512 12 358 1105

解析

36×24÷32 + 346
=864÷32 + 346
=27 + 346
=373
75 + (322 - 218)×6
=75 + 104×6
=75 + 624
=699
903 - [345 + (134 - 88)]
=903 - [345 + 46]
=903 - 391
=512
(600÷20 + 150)÷15
=(30 + 150)÷15
=180÷15
=12
290 - 792÷44 + 86
=290 - 18 + 86
=272 + 86
=358
[19 + (341 - 275)]×13
=[19 + 66]×13
=85×13
=1105