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 = ______
68 + 10 = ______
52 + 20 = ______
64 − 10 = ______
92 − 10 = ______
43 + 10 = ______
83 + 10 = ______
88 − 10 = ______
25 − 10 = ______
78 − 10 = ______
9 × 10 = ______
54 − 10 = ______
83 − 10 = ______
39 + 20 = ______
84 + 20 = ______
5 × 10 = ______
41 − 10 = ______
54 + 10 = ______
63 + 20 = ______
73 + 20 = ______
