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$30 + 5 =$ $9 + 50 =$ $6 + 80 =$ $90 + 9 =$
$35 - 5 =$ $59 - 9 =$ $86 - 6 =$ $99 - 9 =$
$35 - 30 =$ $59 - 50 =$ $86 - 80 =$ $99 - 90 =$
$35 - 5 =$ $59 - 9 =$ $86 - 6 =$ $99 - 9 =$
$35 - 30 =$ $59 - 50 =$ $86 - 80 =$ $99 - 90 =$
答案
35 59 86 99 30 50 80 90 5 9 6 9
$20 + 8 =$ $70 - 10 =$ $40 + 30 =$ $62 - 2 + 6 =$
$37 - 30 =$ $65 - 5 =$ $63 - 60 =$ $50 + 40 - 30 =$
$48 - 40 =$ $60 + 20 =$ $95 - 5 =$ $78 - 8 + 5 =$
$56 - 6 =$ $39 - 9 =$ $57 - 50 =$ $4 + 3 + 80 =$
$6 + 30 =$ $28 - 8 =$ $76 - 6 =$ $30 + 4 + 5 =$
$37 - 30 =$ $65 - 5 =$ $63 - 60 =$ $50 + 40 - 30 =$
$48 - 40 =$ $60 + 20 =$ $95 - 5 =$ $78 - 8 + 5 =$
$56 - 6 =$ $39 - 9 =$ $57 - 50 =$ $4 + 3 + 80 =$
$6 + 30 =$ $28 - 8 =$ $76 - 6 =$ $30 + 4 + 5 =$
答案
28 60 70 66 7 60 3 60 8 80 90 75
50 30 7 87 36 20 70 39
50 30 7 87 36 20 70 39
1. 比大小。
$80 ◯ 70$ $27 ◯ 26$ $78 ◯ 90$ $66 ◯ 83$ $77 ◯ 59$
$52 ◯ 61$ $86 ◯ 91$ $9 + 40 ◯ 90 + 4$ $8 + 30 ◯ 80 + 3$
$80 ◯ 70$ $27 ◯ 26$ $78 ◯ 90$ $66 ◯ 83$ $77 ◯ 59$
$52 ◯ 61$ $86 ◯ 91$ $9 + 40 ◯ 90 + 4$ $8 + 30 ◯ 80 + 3$
答案
1. ＞ ＞ ＜ ＜ ＞ ＜ ＜ ＜ ＜
2. 填一填。
$7 + □ = 67$ $5 + □ = 75$ $30 + □ = 60$
$□ - 4 = 30$ $40 - □ = 10$ $□ + 8 = 98$
$□ + 6 = 26$ $□ + 2 = 32$ $78 - □ = 8$
$7 + □ = 67$ $5 + □ = 75$ $30 + □ = 60$
$□ - 4 = 30$ $40 - □ = 10$ $□ + 8 = 98$
$□ + 6 = 26$ $□ + 2 = 32$ $78 - □ = 8$
答案
2. 60 70 30 34 30 90 20 30 70
