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
83 − 10 = ______
45 − 10 = ______
95 − 10 = ______
6 × 10 = ______
3 × 10 = ______
70 − 10 = ______
84 + 20 = ______
61 − 10 = ______
43 + 20 = ______
68 + 20 = ______
57 − 10 = ______
74 + 10 = ______
41 + 10 = ______
60 + 20 = ______
60 + 10 = ______
8 × 10 = ______
56 + 20 = ______
51 − 10 = ______
7 × 10 = ______
33 − 10 = ______
