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
39 − 10 = ______
3 × 10 = ______
90 − 10 = ______
36 + 20 = ______
84 − 10 = ______
95 − 10 = ______
5 × 10 = ______
6 × 10 = ______
49 − 10 = ______
71 − 10 = ______
89 + 20 = ______
75 + 20 = ______
43 + 20 = ______
92 − 10 = ______
26 − 10 = ______
53 + 10 = ______
29 + 10 = ______
63 + 20 = ______
67 + 10 = ______
14 + 10 = ______
