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
73 + 10 = ______
82 + 10 = ______
70 − 10 = ______
85 − 10 = ______
44 + 10 = ______
65 + 10 = ______
40 + 10 = ______
85 + 10 = ______
7 × 10 = ______
48 − 10 = ______
81 + 20 = ______
31 − 10 = ______
27 + 10 = ______
66 − 10 = ______
44 − 10 = ______
26 − 10 = ______
29 + 20 = ______
25 + 10 = ______
87 − 10 = ______
68 + 10 = ______
