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
4 × 10 = ______
41 + 20 = ______
37 + 10 = ______
29 − 10 = ______
93 − 10 = ______
60 − 10 = ______
56 − 10 = ______
27 − 10 = ______
73 + 10 = ______
89 + 10 = ______
57 − 10 = ______
26 + 10 = ______
66 − 10 = ______
95 − 10 = ______
2 × 10 = ______
15 + 10 = ______
9 × 10 = ______
47 + 10 = ______
24 + 20 = ______
84 + 10 = ______
