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
74 + 20 = ______
47 − 10 = ______
73 + 20 = ______
3 × 10 = ______
48 − 10 = ______
27 + 10 = ______
50 + 10 = ______
78 + 10 = ______
76 − 10 = ______
33 + 20 = ______
52 − 10 = ______
87 + 10 = ______
63 − 10 = ______
16 + 20 = ______
87 + 20 = ______
55 − 10 = ______
6 × 10 = ______
49 + 20 = ______
43 − 10 = ______
23 + 20 = ______
