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
40 + 10 = ______
55 − 10 = ______
16 + 20 = ______
8 × 10 = ______
86 + 10 = ______
83 + 20 = ______
24 + 20 = ______
9 × 10 = ______
73 + 10 = ______
36 − 10 = ______
59 + 20 = ______
6 × 10 = ______
91 − 10 = ______
31 + 10 = ______
81 + 20 = ______
26 + 20 = ______
51 − 10 = ______
2 × 10 = ______
56 − 10 = ______
68 − 10 = ______
