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
41 + 20 = ______
2 × 10 = ______
73 + 20 = ______
68 + 20 = ______
34 + 10 = ______
56 + 20 = ______
73 − 10 = ______
40 + 20 = ______
86 − 10 = ______
74 + 20 = ______
23 + 20 = ______
57 − 10 = ______
69 + 20 = ______
13 + 20 = ______
55 + 10 = ______
3 × 10 = ______
44 + 20 = ______
55 − 10 = ______
95 − 10 = ______
37 − 10 = ______
