$33 ÷ 5 =$
$1000 - 100 =$
$81 ÷ 9 =$
$80 - 20 =$
$55 ÷ 8 =$
$21 ÷ 4 =$
$7 × 8 =$
$37 + 37 =$
$9 × 4 =$
$1000 - 100 =$
$81 ÷ 9 =$
$80 - 20 =$
$55 ÷ 8 =$
$21 ÷ 4 =$
$7 × 8 =$
$37 + 37 =$
$9 × 4 =$
答案
$33 ÷ 5 = 6······3$
$1000 - 100 = 900$
$81 ÷ 9 = 9$
$80 - 20 = 60$
$55 ÷ 8 = 6······7$
$21 ÷ 4 = 5······1$
$7 × 8 = 56$
$37 + 37 = 74$
$9 × 4 = 36$
$1000 - 100 = 900$
$81 ÷ 9 = 9$
$80 - 20 = 60$
$55 ÷ 8 = 6······7$
$21 ÷ 4 = 5······1$
$7 × 8 = 56$
$37 + 37 = 74$
$9 × 4 = 36$
1. 一个四位数,它的最高位是(
千
)位;一个五位数,它的最高位是(万
)位。答案
1.千 万
2. 用4,5,6,7组成最大的四位数是(
7654
),最小的四位数是(4567
)。答案
2.7654 4567
3. 一百一百地数,从五百数到一千:五百、(
六百
)、(七百
)、(八百
)、(九百
)、一千。答案
3.六百 七百 八百 九百
4.829里面有(
8
)个百、(2
)个十和(9
)个一。答案
4.8 2 9
5. □里最大能填几?
6×□<45
□×8<53
5×□<48
4×□<35
40>□×6
41>□×7
6×□<45
□×8<53
5×□<48
4×□<35
40>□×6
41>□×7
答案
5.7 6 9 8 6 5
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