一、我会计算。
$11 - 6 = $ $16 - 8 = $ $13 - 7 = $ $4 + 7 - 5 = $
$14 - 6 = $ $10 - 3 = $ $13 - 9 = $ $18 - 8 + 4 = $
$11 - 8 = $ $12 - 8 = $ $12 - 3 = $ $10 - 4 + 7 = $
$11 - 6 = $ $16 - 8 = $ $13 - 7 = $ $4 + 7 - 5 = $
$14 - 6 = $ $10 - 3 = $ $13 - 9 = $ $18 - 8 + 4 = $
$11 - 8 = $ $12 - 8 = $ $12 - 3 = $ $10 - 4 + 7 = $
答案:
5 8 6 6 8 7 4 14 3 4 9 13
二、在$◯$里填上“$>$”“$<$”或“$=$”。
$90◯93 - 3$ $79◯85 - 5$ $100◯90 + 9$
$78 - 8◯80$ $7 + 40◯49$ $20 + 6◯30$
$90◯93 - 3$ $79◯85 - 5$ $100◯90 + 9$
$78 - 8◯80$ $7 + 40◯49$ $20 + 6◯30$
答案:
= < > < < <
三、解决问题。
它们一共拔了多少根萝卜?
$□◯□ = □$(根)

它们一共拔了多少根萝卜?
$□◯□ = □$(根)
答案:
$30+30=60$
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