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
6 × 10 = ______
9 × 10 = ______
84 − 10 = ______
45 − 10 = ______
45 + 10 = ______
1 × 10 = ______
67 − 10 = ______
36 + 20 = ______
39 − 10 = ______
88 + 10 = ______
7 × 10 = ______
2 × 10 = ______
44 + 20 = ______
65 + 10 = ______
56 + 10 = ______
35 + 10 = ______
22 + 20 = ______
87 + 20 = ______
29 − 10 = ______
74 + 10 = ______
