2026年天天练口算四年级数学下册人教版第72页答案
2
$9.8 - 4.8 =$ $0.36 - 0.26 =$ $57.8 - 0.2 - 3.65 =$
$5.1 - 3.9 =$ $3.6 + 2.8 =$ $3 + 1.2 - 1.8 =$
$6.6 + 3 =$ $0.7 + 3 =$ $8.5 - 6.5 - 1.5 =$
$6.89 - 0.08 =$ $4.8 - 4.5 =$ $4.15 - 3.46 + 3.46 =$
$0.7 + 0.33 =$ $3.9 - 0.7 =$ $2.8 + 3.1 - 4.65 =$
$0.25 + 0.75 =$ $4.8 + 5.2 =$ $3.6 - 1.9 - 0.3 =$
$9 + 0.1 =$ $1.8 - 1 =$ $8.8 + 2.2 - 7.19 =$
$1.29 - 0.18 =$ $9.9 - 5.9 =$ $0.28 + 0.42 - 0.5 =$
$0.9 + 0.1 =$ $12.8 + 8.2 =$ $16.3 - 0.3 + 6 =$
$10 - 0.8 =$ $5.6 - 4.9 =$ $7.25 + 0.75 - 1 =$
$2.9 - 1.9 =$ $80 - 18.62 =$ $4 - 2.8 - 1.2 =$
$1.4 + 6.6 =$ $25 × 4 =$ $0.3 + 0.6 + 0.1 =$
$9.3 + 0.7 =$ $2.3 + 100 =$ $9 - 0.7 + 8.3 =$
$12.6 - 0.6 =$ $40 × 80 =$ $10 - 9.99 - 0.01 =$
$9.7 - 0.7 =$ $4.2 + 10 =$ $32.46 + 7.2 - 1.46 =$
$1.5 + 8.5 =$ $86 - 23 =$ $7.5 - 2.39 + 1.5 =$
$19.8 - 9.8 =$ $5.8 + 4.2 =$ $45 - 38.2 - 1.8 =$
$8.2 + 1.8 =$ $9.85 - 4.3 - 1.7 =$ $3.6 - 0.3 + 0.3 =$
$4.5 + 5.5 =$ $25.4 - 5.2 - 4.8 =$ $0.67 + 0.23 + 0.1 =$

答案

5
9.8 - 4.8 = 5
0.36 - 0.26 = 0.1
57.8 - 0.2 - 3.65 = 54
5.1 - 3.9 = 1.2
3.6 + 2.8 = 6.4
3 + 1.2 - 1.8 = 2.4
6.6 + 3 = 9.6
0.7 + 3 = 3.7
8.5 - 6.5 - 1.5 = 0.5
6.89 - 0.08 = 6.81
4.8 - 4.5 = 0.3
4.15 - 3.46 + 3.46 = 4.15
0.7 + 0.33 = 1.03
3.9 - 0.7 = 3.2
2.8 + 3.1 - 4.65 = 1.25
0.25 + 0.75 = 1
4.8 + 5.2 = 10
3.6 - 1.9 - 0.3 = 1.4
9 + 0.1 = 9.1
1.8 - 1 = 0.8
8.8 + 2.2 - 7.19 = 3.81
1.29 - 0.18 = 1.11
9.9 - 5.9 = 4
0.28 + 0.42 - 0.5 = 0.2
0.9 + 0.1 = 1
12.8 + 8.2 = 21
16.3 - 0.3 + 6 = 22
10 - 0.8 = 9.2
5.6 - 4.9 = 0.7
7.25 + 0.75 - 1 = 7
2.9 - 1.9 = 1
80 - 18.62 = 61.38
4 - 2.8 - 1.2 = 0
1.4 + 6.6 = 8
25 × 4 = 100
0.3 + 0.6 + 0.1 = 1
9.3 + 0.7 = 10
2.3 + 100 = 102.3
9 - 0.7 + 8.3 = 16.6
12.6 - 0.6 = 12
40 × 80 = 3200
10 - 9.99 - 0.01 = 0
9.7 - 0.7 = 9
4.2 + 10 = 14.2
32.46 + 7.2 - 1.46 = 38.2
1.5 + 8.5 = 10
86 - 23 = 63
7.5 - 2.39 + 1.5 = 6.61
19.8 - 9.8 = 10
5.8 + 4.2 = 10
45 - 38.2 - 1.8 = 5
8.2 + 1.8 = 10
9.85 - 4.3 - 1.7 = 3.85
3.6 - 0.3 + 0.3 = 3.6
4.5 + 5.5 = 10
25.4 - 5.2 - 4.8 = 15.4
0.67 + 0.23 + 0.1 = 1