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
3 × 10 = ______
5 × 10 = ______
92 − 10 = ______
68 − 10 = ______
9 × 10 = ______
61 − 10 = ______
73 + 10 = ______
56 − 10 = ______
32 − 10 = ______
86 − 10 = ______
29 + 20 = ______
2 × 10 = ______
77 − 10 = ______
27 + 20 = ______
8 × 10 = ______
88 + 10 = ______
40 − 10 = ______
7 × 10 = ______
54 + 10 = ______
86 + 20 = ______
