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
54 − 10 = ______
26 − 10 = ______
8 × 10 = ______
3 × 10 = ______
49 + 20 = ______
9 × 10 = ______
6 × 10 = ______
83 − 10 = ______
45 + 10 = ______
39 + 20 = ______
95 − 10 = ______
57 − 10 = ______
48 + 10 = ______
52 − 10 = ______
31 − 10 = ______
72 + 10 = ______
58 − 10 = ______
41 + 10 = ______
51 + 20 = ______
38 + 20 = ______
