Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
47 + 20 = ______
32 − 10 = ______
93 − 10 = ______
74 − 10 = ______
83 + 20 = ______
78 + 10 = ______
64 + 10 = ______
63 + 10 = ______
3 × 10 = ______
72 + 10 = ______
43 − 10 = ______
5 × 10 = ______
85 + 20 = ______
88 − 10 = ______
38 + 10 = ______
6 × 10 = ______
37 − 10 = ______
67 + 10 = ______
8 × 10 = ______
57 + 10 = ______
