Addition and Subtaction Equations
Estimate Products
Estimate Sums and Differences
Multiply by Two-Digit Numbers
Mix!!
100
k+72=80
8
100
63x15=_
1200
100
929+570=_
1500
100
22x62=_
1804
100
90x90=_
8100
200
b-4=10
14
200
22x45=_
1000
200
816+725=_
1500
200
521x26=_
13,456
200
8,152,817-3,350,135=_
4,802,682
300
12+n=32
20
300
78x31_
2400
300
657+491=_
1200
300
53x63=_
3445
300
9000x40=_
360,000
400
k-7=1
8
400
28x62=_ a.1,000 b.1,100 c.1,200 d.1,800
d.1,800
400
364-130=_
200
400
54x96=_
5184
400
9,516,546+7,798,710=_
17,314,276
500
y+21=30
9
500
46x57=_ a.2000 b.3000 c.300 d.4000
b.3000
500
129+315=_
400
500
14x25=_
350
500
8000x8=_
64000
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