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
20 + 10 = ______
6 × 10 = ______
91 − 10 = ______
2 × 10 = ______
81 − 10 = ______
32 + 10 = ______
9 × 10 = ______
48 + 10 = ______
26 − 10 = ______
56 + 20 = ______
89 − 10 = ______
93 − 10 = ______
17 + 10 = ______
5 × 10 = ______
8 × 10 = ______
75 + 10 = ______
43 + 10 = ______
57 + 10 = ______
51 + 10 = ______
31 + 20 = ______
