Page 143 - NUMINO Challenge_M1
P. 143
Answer
Key
2 In the third scale, if the weight of D is 1, the weight of A is 2 since it is twice the
weight.
The first scale shows that the weight of B is equal to the weight of A, which is 2.
The second scale shows that the weight of C is twice the weight of B, so 2^2=4.
The heaviest weight is C.
3. Unmarked Measurements
EEExxxeeerrrccciiissseee 2 cm can be measured from the difference of the 5 cm side and the 3 cm side
of the triangles.
43
5
3
45
EEExxxeeerrrccciiissseee The diagram shows all the unlabeled measurements.
1 cm 3 cm
2 cm 1 cm 2 cm
1 cm
The 3 lengths that can be measured are 1 cm, 2 cm, and 3 cm.
EEExxxeeerrrccciiissseee One bunch of grapes is equal to 2 unit weights, so 2 unit weights must be added
to the left plate to balance the scale.
6 NUMINO Challenge M1
Key
2 In the third scale, if the weight of D is 1, the weight of A is 2 since it is twice the
weight.
The first scale shows that the weight of B is equal to the weight of A, which is 2.
The second scale shows that the weight of C is twice the weight of B, so 2^2=4.
The heaviest weight is C.
3. Unmarked Measurements
EEExxxeeerrrccciiissseee 2 cm can be measured from the difference of the 5 cm side and the 3 cm side
of the triangles.
43
5
3
45
EEExxxeeerrrccciiissseee The diagram shows all the unlabeled measurements.
1 cm 3 cm
2 cm 1 cm 2 cm
1 cm
The 3 lengths that can be measured are 1 cm, 2 cm, and 3 cm.
EEExxxeeerrrccciiissseee One bunch of grapes is equal to 2 unit weights, so 2 unit weights must be added
to the left plate to balance the scale.
6 NUMINO Challenge M1
