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 + 10 = ______
68 − 10 = ______
67 + 10 = ______
16 + 10 = ______
31 + 10 = ______
43 + 20 = ______
9 × 10 = ______
38 − 10 = ______
5 × 10 = ______
64 + 10 = ______
86 − 10 = ______
37 − 10 = ______
66 + 20 = ______
77 − 10 = ______
88 − 10 = ______
87 + 20 = ______
68 + 20 = ______
63 − 10 = ______
30 + 20 = ______
38 + 10 = ______
