一、口算。
$31 + 59 =$
$27×4 =$
$87÷3 =$
$78÷3 =$
$100 - 26 =$
$16×4 =$
$46 + 28 =$
$90÷3 =$
$83 - 47 =$
$468÷6 =$
$840÷2 =$
$380 + 35 =$
$16×50 =$
$450÷3 =$
$17×60 =$
$300 - 170 =$
$216÷6 =$
$25×30 =$
$50×70 =$
$50×14 =$
$40×80 =$
$9×120 =$
$780 + 160 =$
$40×19 =$
$31 + 59 =$
$27×4 =$
$87÷3 =$
$78÷3 =$
$100 - 26 =$
$16×4 =$
$46 + 28 =$
$90÷3 =$
$83 - 47 =$
$468÷6 =$
$840÷2 =$
$380 + 35 =$
$16×50 =$
$450÷3 =$
$17×60 =$
$300 - 170 =$
$216÷6 =$
$25×30 =$
$50×70 =$
$50×14 =$
$40×80 =$
$9×120 =$
$780 + 160 =$
$40×19 =$
答案
一、90 108 29
26 74 64
74 30 36
78 420 415
800 150 1020
130 36 750
3500 700 3200
1080 940 760
26 74 64
74 30 36
78 420 415
800 150 1020
130 36 750
3500 700 3200
1080 940 760
二、计算下面各题。
$13×5×50$
$2×45×53$
$2×15×48$
$22×8×7$
$2×4×130$
$35×20×2$
$13×5×50$
$2×45×53$
$2×15×48$
$22×8×7$
$2×4×130$
$35×20×2$
答案
二、3250 4770 1440
1232 1040 1400
1232 1040 1400
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