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 = ______
8 × 10 = ______
46 + 10 = ______
20 + 20 = ______
32 + 10 = ______
4 × 10 = ______
3 × 10 = ______
81 + 10 = ______
26 + 20 = ______
51 + 20 = ______
31 − 10 = ______
79 + 10 = ______
86 + 20 = ______
58 + 20 = ______
53 − 10 = ______
95 − 10 = ______
9 × 10 = ______
55 − 10 = ______
52 + 20 = ______
40 − 10 = ______
