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
3 × 10 = ______
41 + 10 = ______
1 × 10 = ______
50 + 20 = ______
25 + 10 = ______
56 − 10 = ______
5 × 10 = ______
7 × 10 = ______
26 − 10 = ______
89 + 10 = ______
61 + 20 = ______
87 − 10 = ______
70 + 20 = ______
66 + 20 = ______
64 − 10 = ______
65 + 10 = ______
83 − 10 = ______
86 + 10 = ______
9 × 10 = ______
31 + 20 = ______
