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
4 × 10 = ______
44 − 10 = ______
40 + 10 = ______
9 × 10 = ______
49 + 10 = ______
42 + 20 = ______
86 + 10 = ______
88 − 10 = ______
47 − 10 = ______
67 + 10 = ______
26 + 10 = ______
40 + 20 = ______
83 + 10 = ______
6 × 10 = ______
29 + 10 = ______
81 − 10 = ______
23 + 20 = ______
89 + 10 = ______
39 − 10 = ______
3 × 10 = ______
