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
78 + 10 = ______
68 + 10 = ______
51 + 20 = ______
29 − 10 = ______
9 × 10 = ______
7 × 10 = ______
6 × 10 = ______
3 × 10 = ______
97 − 10 = ______
80 − 10 = ______
60 + 10 = ______
47 − 10 = ______
35 + 20 = ______
64 − 10 = ______
1 × 10 = ______
74 + 20 = ______
94 − 10 = ______
44 − 10 = ______
28 − 10 = ______
54 + 10 = ______
