Answer using an area model.
20 x 40 =
800
Answer using partial products.
80 x 9 =
720
Answer using the traditional method.
20 x 8 =
160
Answer by estimating the product.
192 x 29
About 6,000 (5,568)
Answer using an area model.
74 x 8 =
592
Answer using partial products.
13 x 24 =
312
Answer using the traditional method.
34 x 83 =
2,822
Answer by estimating the product.
124 x 55
Answer using an area model.
200 x 36 =
7200
Answer using partial products.
14 x 22 =
308
Answer using the traditional method.
200 x 20 =
4,000
Answer by estimating the product.
7 x 9 =
About 100 (63)
Answer using an area model.
60 x 8 =
480
Answer using partial products.
25 x 9 =
225
Answer using the traditional method.
32 x 5 =
160
Answer by estimating the product.
124 x 12 =
about 1,000 (1,488)
Answer using an area model.
90 x 30 =
2,700
Answer using partial products.
36 x 27 =
972
Answer using the traditional method.
302 x 12 =
2,624
Answer by estimating the product.
650 x 42 =
28,000 (27,300)