1. 口算。
$5 - 2 =$ $3 - 3 =$ $2 - 1 =$ $3 - 1 =$ $4 - 2 =$
$5 - 3 =$ $2 - 0 =$ $4 - 3 =$ $3 - 2 =$ $5 - 4 =$
$5 - 2 =$ $3 - 3 =$ $2 - 1 =$ $3 - 1 =$ $4 - 2 =$
$5 - 3 =$ $2 - 0 =$ $4 - 3 =$ $3 - 2 =$ $5 - 4 =$
答案:
1. 3 0 1 2 2 2 2 1 1 1
2. 看图列式计算。

$□ ◯ □ = □$

$□ ◯ □ = □$
$□ ◯ □ = □$
$□ ◯ □ = □$
答案:
2. 5-3=2 4-4=0
3.
$□ - □ = □$
$□ ◯ □ = □$

$□ - □ = □$
$□ ◯ □ = □$
答案:
3. 4-3=1 5-2=3
4. 先写出下面算式的得数,再把算式按得数从大到小排列。

$(\quad\quad)>(\quad\quad)>(\quad\quad)>(\quad\quad)>(\quad\quad)$
$(\quad\quad)>(\quad\quad)>(\quad\quad)>(\quad\quad)>(\quad\quad)$
答案:
4. 3+1>5-2>0+2>2-1>4-4
5. $□$里可以填几?
$□ + 0 = 4$ $□ - 0 = □$ $0 + □ = 2$
$3 + □ = 3$ $3 = □ - 2$ $0 = □ - 5$
$□ + 0 = 4$ $□ - 0 = □$ $0 + □ = 2$
$3 + □ = 3$ $3 = □ - 2$ $0 = □ - 5$
答案:
5. 4 3 3(答案不唯一) 2 0 5 5
查看更多完整答案,请扫码查看